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Severe coronavirus disease 2019 (COVID-19) infection may decrease respiratory and physical functions. To evaluate whether robot-assisted stair climbing training (RASCT) would improve pulmonary and physical functions in a patient post-severe COVID-19 infection. A 48-year-old woman who had experienced severe COVID-19 underwent a 6-week inpatient rehabilitation. She persistently exhibited impaired pulmonary and physical functions, including walking and balance impairment. We provided a 30-min outpatient RASCT biweekly for 6 weeks. After training, maximal inspiratory and maximal expiratory pressures improved from 81 and 74 cmH2O to 104 and 81 cmH2O, respectively. The walking speed improved from 1.15 to 1.21 m/s. In balance ability, physical performance battery score and timed up-and-go test improved from 8 to 11 s and 10.89 to 9.95 s, respectively. Regarding exercise capacity, the 6-min walk test distance improved from 453 to 482 m, and the number of 1-min sit-to-stand test improved from 20 to 23, with improved pulse rate and saturation level. The physical and psychological domain scores of the World Health Organization Quality-of-Life Scale-BREF improved from 44 to 63 and 69 to 81, respectively; Falls Efficacy Scale-International scores improved from 38 to 21. RASCT, as part of a rehabilitation plan, was feasible and effective for this patient after severe COVID-19 infection. [ABSTRACT FROM AUTHOR]

The Nordic Hamstring Exercise (NHE) effectively strengthens the knee flexors. Typically conducted without assistance, extended knee angles are not reached with sustained muscle activation in the presence of insufficient eccentric strength and/or fatigue. This might impair the desired neuromuscular adaptations and assessment accuracy. This study investigated kinetic and kinematic differences between assisted and unassisted NHEs (3 × 3 repetitions) performed by sixteen male sprinters (22 years, 181 cm, 76 kg). Kinetic (peak moment, impulse) and kinematic parameters (e.g., time under tension, range of motion to excessive downward acceleration (ROMDWA) were investigated. All analysed parameters significantly differed between assisted and unassisted NHEs (p ≤ 0.003; 0.635≤ ηp² ≤ 0.929) favouring assisted execution, except for peak moments and maximal hip flexion. Repetition 1 of assisted NHEs revealed 21% higher impulses rising to 82% during repetition 9. Equivalent interactions of mode and repetition became apparent for time under tension, ROMDWA, mean and fractional angular velocity. Unassisted NHEs elicited substantially greater inter-repetition fatigue (rep1 vs. rep9): +79% fractional angular velocity (d = 1.01), −41% impulse (d = 1.53), −31% ROMDWA (d = 0.99) and −29% time under tension (d = 1.45). Assisted NHEs ensured higher execution quality and lower between-participant variability by facilitating a controlled full-ROM movement. Three sets of 3 NHEs sufficed to induce substantial fatigue within and across sets. [ABSTRACT FROM AUTHOR]

Abstract\nIMPLICATIONS FOR REHABILITATIONThere is a lack of literature examining the engagement in strength activities of people with disabilities (PWD) using and not using wearable devices. The objectives of the current study were to determine the prevalence of strength activity engagement among wearable device users with disabilities, and to compare strength activity engagement between wearable device users and non-users with and without disabilities. Wearable device users and non-users with and without disabilities from eight states of the CDC’s 2017 Behavioral Risk Factor Surveillance were included in the analysis. Linear regression was used to examine the association between wearable device use and disability status and the interaction term for frequency of strength activity per week, while logistic regression was used to determine the association between the two variables and the interaction term for strength activity engagement and meeting strength activity guidelines. 7055 wearable device users and non-users with and without disabilities were included in the analysis. No interaction effects were found between wearable device use and disability status. In unadjusted logistic regressions, wearable device users were more likely to engage in strength activity (OR = 1.16, 95% CI [1.16, 2.20]) and meet strength activity guidelines (OR = 1.50, 95% CI [1.07, 2.09]), whereas PWDs were less likely to engage in strength activity (OR = 0.57, 95% CI [0.44, 0.75]) and meet strength activity guidelines (OR = 0.72, 95% CI [0.53, 0.98]). The use of wearable devices could lead to engagement in strength activity. However, further research is needed to determine its effectiveness in PWD. Wearable devices can be used to track physical activity and strength activity engagement.Wearable device users were more likely to engage in vigorous activity and meet the vigorous activity guidelines of two times per week to obtain health-related benefits.People with disabilities were less likely to engage in strength activity and less likely to meet the strength activity guidelines of two times per week.Further research is needed to determine the effectiveness of using wearable devices to promote engagement in strength activity and their use in rehabilitation settings.There is potential use of wearable devices in promoting strength activity engagement among people with disabilities and in rehabilitation setting, but there is a need to determine how people with disabilities use wearable devices in rehabilitation setting.Wearable devices can be used to track physical activity and strength activity engagement.Wearable device users were more likely to engage in vigorous activity and meet the vigorous activity guidelines of two times per week to obtain health-related benefits.People with disabilities were less likely to engage in strength activity and less likely to meet the strength activity guidelines of two times per week.Further research is needed to determine the effectiveness of using wearable devices to promote engagement in strength activity and their use in rehabilitation settings.There is potential use of wearable devices in promoting strength activity engagement among people with disabilities and in rehabilitation setting, but there is a need to determine how people with disabilities use wearable devices in rehabilitation setting. [ABSTRACT FROM AUTHOR]

The study examined acute effects of dryland muscular endurance (ME) and maximum strength (MS) sessions on performance, physiological, and biomechanical variables during a subsequent sprint swimming session. Twenty-seven swimmers (16.5 ± 2.6 yrs) completed three experimental conditions including: i) ME, 55% of 1-repetition maximum, ii) MS, 90% of 1-repetition maximum, and iii) control (CON, no dry-land). Twenty minutes following ME, MS and CON sessions swimmers performed a 10-s tethered swimming sprint, four by 50-m (4 × 50-m), and a 100-m front crawl sprints. Performance time, blood lactate, heart rate (HR), stroke rate (SR), stroke length (SL), stroke index (SI), and stroke efficiency (ηF) were measured during 4 × 50-m and 100-m. Hand grip strength (HG), and shoulder muscles isometric strength (ISO) were measured after each session. Mean 4 × 50-m time increased in ME compared to CON by 1.7 ± 2.7% (p = 0.01), while 100-m time was similar among conditions (p > 0.05). ISO was lower after dry-land training in all conditions (p = 0.01). Tethered force, HG, HR, SR, SL, SI, and ηF were no different between conditions (p > 0.05). Dryland ME session decrease swimming performance; however, ME and MS sessions did not affect technical ability during a subsequent maximum intensity swimming. [ABSTRACT FROM AUTHOR]

The aim of this systematic review with meta-analysis was to evaluate the effects of resistance training on physical fitness, physiological variables and body composition of postmenopausal women. The present systematic review was performed in accordance with the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statement and was registered in PROSPERO. A total of 12 studies were included. The literature search was performed in PubMed, Web of Science and EBSCO. Randomized control trials were included. Two blinded investigators performed the search, study selection and data collection, and assessed the quality and risk of bias. A random-effects model was used for all analyses. Compared to the control group, resistance training produced a significant improvement in maximal oxygen volume (standardized mean difference [SMD] = 2.32, p < 0.001), lower extremity strength (SMD = 4.70, p < 0.001) and upper extremity strength (SMD = 7.42, p < 0.001). The results obtained in the systematic review and meta-analysis confirm the benefits of resistance training on physical fitness in postmenopausal women, although there is more debate regarding its influence on bone mineral density, and anthropometric and derived variables. This work provides a solid starting point for promoting resistance training at a frequency of 3 days per week, in 60-min sessions, with the aim of improving parameters directly related to quality of life, functionality and disease prevention of postmenopausal women. [ABSTRACT FROM AUTHOR]

Many adults with intellectual disabilities live a sedentary lifestyle, have low levels of functional fitness and are overweight. The purpose of this study was to determine whether an exercise intervention with activities which are simple, fun, accessible and adapted for socialising in a group would elicit significant improvements in various parameters associated with functional fitness for adults with intellectual disabilities. Forty-two adults with intellectual disability (44.5 ± 11.5 years) were randomly located to an exercise group (n = 19) and a control group (n = 23). The program consisted of walking, dancing, and resistance training exercises and was implemented, three times a week for 6 weeks. Significant ameliorations (p < 0.05) were reported for body mass, hip circumference, aerobic capacity, functional ability, muscular strength, balance, and flexibility with varying degrees of effect sizes. The combined exercise training program showed a significant positive impact on various parameters associated with functional fitness for adults with intellectual disability. [ABSTRACT FROM AUTHOR]

Patients with chronic kidney disease (CKD) on hemodialysis (HD) have muscle weakness in addition to a high risk of falls, motor impairment and immobilization To conduct a systematic review with meta-analysis of randomized clinical trials regarding the effectiveness of resistance exercises on muscle strengthening and lower limb endurance in patients with CKD on HD. The study was conducted in the PubMed, EMBASE, SciELO, LILACS and Cochrane databases, without linguistic restrictions or year of publication. Of the 824 studies found, only 6 were included for analysis. Studies were allocated to some concern or high risk of bias regarding the reporting of outcomes. The low quality of outcome evidence can mainly be observed due to the severe level of inconsistency owing to the high degree of heterogeneity. A significant reduction in heterogeneity was observed after the sensitivity analysis, demonstrating an improvement in the muscle strength of the lower limbs (p =.002). It is concluded that most studies demonstrate benefits in carrying out resistance training programs in increasing muscle strength of the lower limbs, however, it is necessary that randomized clinical trials (RCTs) with greater methodological rigor are performed to confirm these findings. [ABSTRACT FROM AUTHOR]

Purpose: The aim of the present study was to investigate the effects of acute caffeine supplementation on the performance during a session of resistance training alone (RT) or in combination with aerobic training (i.e. concurrent training; CT). Method: Fourteen resistance-trained men (23.1 ± 4.2 years) were recruited and performed both RT and CT under three different conditions: control (CONT), placebo (PLA), and caffeine (CAF; 6 mg.kg−1) for a total of six experimental conditions. Results: Both total and per set number of repetitions, and total volume load were lower during CT as compared to RT, irrespective of the supplementation condition (all p <.001), whereas a supplementation main effect was observed for the total number of repetitions (p =.001), the number of repetitions in the first (p =.002) and second sets (p =.001), and total volume load (p =.001). RPE values were higher after the CT sessions than after the RT sessions (p <.001), whereas no differences were observed between supplementation conditions (p =.865). Conclusions: Caffeine supplementation was not sufficient to minimize the acute interference effect on strength performance in a CT session when compared to RT alone. In contrast, caffeine improved strength performance during the first set of both CT and RT, while maintaining a similar RPE between the supplementation conditions. However, the overall effect was small. [ABSTRACT FROM AUTHOR]

Purpose: To examine the effects of a 5-week continuous cycling training intervention on electromyographic amplitude (EMGRMS)- and mechanomyographic amplitude (MMGRMS)-torque relationships of the vastus lateralis (VL) during a prolonged contraction. Methods: Twenty-four sedentary, young adults performed maximal voluntary contractions (MVCs) and a prolonged isometric trapezoidal contraction at the same absolute 40% MVC for the knee extensors before (PRE) and after training (POSTABS). Individual b- (slopes) and a-terms (y-intercepts) were calculated from the log-transformed electromyographic amplitude (EMGRMS)- and mechanomyographic amplitude (MMGRMS)-torque relationships during the increasing and decreasing segments of the trapezoid. EMGRMS and MMGRMS was normalized for the 45-s steady torque segment. Results: At PRE, b-terms for the EMGRMS-torque relationships during the linearly decreasing segment were greater than the increasing segment (p <.001), and decreased from PRE to POSTABS (p =.027). a-terms were greater during the linearly increasing than decreasing segment at PRE, while the a-terms for the linearly decreasing segment increased from PRE to POSTABS (p =.027). For the MMGRMS-torque relationships, b-terms during the linearly decreasing segment decreased from PRE to POSTABS (p =.013), while a-terms increased from PRE to POSTABS when collapsed across segments (p =.022). Steady torque EMGRMS increased for POSTABS (p <.001). Conclusion: Although cycling training increased aerobic endurance, incorporating resistance training may benefit athletes/individuals as the alterations in neuromuscular parameters post-training suggest a greater neural cost (EMGRMS) and mechanical output (MMGRMS) to complete the same pre-training fatiguing contraction. [ABSTRACT FROM AUTHOR]

Eccentric quasi-isometric (EQI) contractions (maintaining a yielding contraction for as long as possible, beyond task failure) have gained interest in research and applied settings. However, little is known regarding the biomechanical profile of EQIs. Fourteen well-trained males performed four maximal effort knee-extensor EQIs, separated by 180 seconds. Angular impulse, velocity, and time-under-tension through the 30–100º range of motion (ROM), and in eight ROM brackets were quantified. Statistical parametric mapping, analyses of variance, and standardised effects (Hedges' g (ES), %Δ) detected between-contraction joint-angle-specific differences in time-normalised and absolute variables. Mean velocity was 1.34º·s−1 with most (62.5 ± 4.9%) of the angular impulse imparted between 40–70º. Most between-contraction changes occurred between 30–50º (p≤ 0.067, ES = 0.53 ± 0.31, 60 ± 52%), while measures remained constant between 50–100º (= 0.069–0.83, ES = 0.10 ± 0.26, 14.3 ± 24.6%). EQIs are a time-efficient means to impart high cumulative mechanical tension, especially at short to medium muscle lengths. However, angular impulse distribution shifts towards medium to long muscle lengths with repeat contractions. Practitioners may utilise EQIs to emphasize the initial portion of the ROM, and limit ROM, or apply EQIs in a fatigued state to emphasize longer muscle lengths. [ABSTRACT FROM AUTHOR]

Assess the cardiac autonomic modulation during and after lower limbs resistance exercise (RE) in elderly compared to young. Fifteen elderly (66 ± 5 years) and 15 young (25 ± 4 years) underwent a RE protocol on the Leg Press at 70% of one repetition maximum. Parasympathetic indices (LnSD1 and LnRMSSD) were obtained through ultra-short-term heart rate variability analyze at resting, peak, and recovery (1, 3, 5, 10, and 15 min); in addition, heart rate recovery (HRR) was obtained. At the peak effort: LnSD1 and LnRMSSD were higher in the elderly compared to young (LnSD1: 0.65 ± 0.21 vs. 0.44 ± 0.22, p < 0.05; LnRMSSD: 0.81 ± 0.21 vs. 0.58 ± 0.23, p < 0.05); and at recovery phase: attenuated HRR and lower parasympathetic response were found to elderly compared to young (p < 0.05). At the peak of RE, greater parasympathetic modulation was observed in elderly compared to young, and during recovery lower parasympathetic modulation and attenuated HRR were found in elderly. [ABSTRACT FROM AUTHOR]

Cancer-related fatigue (CRF) is unrelenting. As neither rest nor sleep ameliorates cognitive, emotional, and physical symptoms, quality of life is diminished. This study examines resistance training (RT) effectiveness on CRF in cancer survivors. The secondary aims were to identify the dose-response relationship of RT frequency, intensity, and volume on CRF in different cancer survivor populations. Systematic searches via numerous databases for RCTs were performed in June 2022. Patient-reported outcome measures (PROM), were analysed, pre-to-post intervention, using a random-effects model. The Physiotherapy Evidence Database (PEDro) scale informed methodological quality assessment. Eight studies were included (cancer survivors: breast (BCS) = 5; endometrial (ECS) = 1; prostate (PCS) = 2). Overall, RT interventions ≥ 6 weeks elicited large significant reductions in CRF for FACIT-F (SMD = 0.932, p = <0.001) and moderate significant reductions in CRF for PFS-R (SMD = −0.622, p = 0.004). Main findings indicate that RT ameliorates CRF, especially in BCS; however, individualised approaches should be advocated. Supervised training elicited the greatest positive outcomes, thus should be a pivotal part of the cancer rehabilitation pathway. Future studies should be adequately powered, undertake discrete analyses of different cancer types, and investigate chronic RT effects. Cancer-related fatigue (CRF) is debilitating and distressing, leading to reduced quality of life and function in cancer survivors. Considerable heterogeneity exists in disease histology and clinical patient presentation. Individualised resistance training (RT) is an effective, safe, and accessible intervention to mitigat:e fatigue levels, thus aid function, most notably in breast cancer survivors [ABSTRACT FROM AUTHOR]

To determine the safety, feasibility, and potential effect of an 18-week exercise intervention for adults with primary brain cancer. Eligible patients were 12-26-weeks post-radiotherapy for brain cancer. The individually-prescribed weekly exercise was ≥150-minutes of moderate-intensity exercise, including two resistance-training sessions. The intervention was deemed "safe" if exercise-related, serious adverse events (SAE) were experienced by <10% of participants, and feasible if recruitment, retention, and adherence rates were ≥75%, and ≥75% compliance rates were achieved in ≥75% of weeks. Patient-reported and objectively-measured outcomes were assessed at baseline, mid-intervention, end-intervention, and 6-month follow-up, using generalized estimating equations. Twelve participants enrolled (51 ± 19.5 years, 5 females). There were no exercise-related SAEs. The intervention was feasible (recruitment:80%, retention:92%, adherence:83%). Participants completed a median of 172.8 (min:77.5, max:560.8) minutes of physical activity per week. 17% met the compliance outcome threshold for ≥75% of the intervention. Improvements in quality of life (mean change (95% CI): 7.9 units (1.9, 13.8)), functional well-being (4.3 units (1.4, 7.2)), depression (−2.0 units (−3.8, −0.2)), activity (112.8 min (42.1, 183.4)), fitness (56.4 meters (20.4, 92.5)), balance (4.9 s (0.9, 9.0)), and lower-body strength (15.2 kg (9.3, 21.1)) were observed end-intervention. Preliminary evidence support that exercise is safe and beneficial to the quality of life and functional outcomes for people with brain cancer.Registration: ACTRN12617001577303 The BRAin Cancer and Exercise (BRACE) study highlights the need for regular monitoring of disease- and treatment-related side effects which may present as barriers to exercise. Exercise prescription should be modified according to the presence and severity of disease- and treatment-related barriers. Adverse events observed, such as dizziness, highlight the importance of supervised exercise for people with brain cancer. If supervision is not possible, then exercise modes with low risk of harm from falls are recommended (e.g., walking, machine-based resistance training). [ABSTRACT FROM AUTHOR]

This study examined the effects of resistance training (RT), Tai Chi (TC) and combination intervention (RT & TC) on the oxidative stress, blood glucose and lipid metabolism and quality of life of elderly patients with type 2 diabetes mellitus (T2DM). Ninety-four elderly patients with T2DM were randomly divided into an RT group (RTG, n = 23), TC group (TCG, n = 24), combination intervention group (CIG, n = 24) and control group (CG, n = 23). All participants were given nutrition and medication. On this basis, RTG, TCG and CIG were administered for 24 weeks (3 times/week, 40 minutes/time). Observation indicators were malondialdehyde (MDA), superoxide dismutase (SOD), 8-hydroxy-2 deoxyguanosine (8-OHdG), fasting plasma glucose (FPG), postprandial plasma glucose (PPG), haemoglobin A1c (HbA1c) and diabetes specific quality of life (DSQL). RT, TC and joint intervention can reduce the oxidative stress damage on elderly patients with T2DM to different degrees, control the levels of blood sugar and blood lipid and improve the quality of life. Compared with single intervention, combination intervention can further reduce the level of oxidative stress but has no additional benefits on blood glucose and lipid control and quality of life. [ABSTRACT FROM AUTHOR]

This study aimed to verify the effects of 4 weeks of high-intensity interval training (HIIT), heavy (HRT) and explosive (ERT) resistance training on aerobic, anaerobic and neuromuscular parameters and performance of well-trained runners. Twenty-six male athletes were divided into HIIT (n = 10), HRT (n = 7) and ERT (n = 9) groups. Maximal oxygen uptake ($V{O_2}\max $ V O 2 max) and the corresponding velocity ($vV{O_2}\max $ vV O 2 max), anaerobic threshold (AT), running economy (RE), oxygen uptake kinetics, lower-body strength (1RM) and power (CMJ), and the 1500m and 5000m time-trial (TT) were determined. Improvements were observed in $vV{O_2}\max $ vV O 2 max (mean difference (Δ): 2.6%; effect size (ES): 0.63) with HIIT, while AT was incresead in ERT (Δ: 4.3%; ES: 0.73) and HRT (Δ: 6.9%; ES: 0.72) groups. The CMJ performance was increased in ERT (Δ: 13.8%; ES: 1.03), HRT (Δ: 6.9%; ES: 0.55) and HIIT (Δ: 5.4%; ES: 0.34), whereas 1RM increase in HRT (Δ: 38.1%; ES: 1.21) and ERT (Δ: 49.2%; ES: 0.96) groups. HIIT improved the 1500m (Δ: −2.3%; ES: −0.62) and both HRT (Δ: −1.6%; ES: −0.32) and ERT (Δ: −1.7%; ES: −0.31) the 5000m TT. Despite performance adaptations were dependent on the training characteristics, both RT and HIIT model constitute an alternative for training periodization. [ABSTRACT FROM AUTHOR]

Increasing physical activity in daily life (PADL) in chronic obstructive pulmonary disease (COPD), mainly in short-term training programs, is still a challenge. The combination of functional exercises with aerobic and resistance training may be a strategy to improve PADL and limitations in activities of daily living (ADL) in COPD. To evaluated the short- and medium-term effects of the combination of functional exercises with aerobic and resistance training. Seventy-six patients were randomized into (1) functional training group who performed resistance and aerobic and functional exercises; (2) conventional training group (CTG) who performed resistance and aerobic exercise; or (3) usual care group who performed respiratory physiotherapy. Patients were evaluated for PADL (activity monitor), ADL limitations (London Chest Activity of Daily Living scale [LCADL]), functional exercise capacity (6-minute walk test [6MWT]), and peripheral muscle strength before and after eight weeks. Medium-term effects were evaluated 12 weeks after the training. There were no changes or differences between groups in PADL and in 6MWT post-intervention and 12 weeks post-training. Only CTG showed a reduction in the total score on LCADL scale after the intervention and increase at follow-up (score: 20 ± 8; 17 ± 6; 19 ± 8, pre-intervention, post-intervention, and 12 weeks post-training, respectively, p = 0.001), without differences between groups (p = 0.375). There were increases in the muscle strength of knee flexors (p = 0.016) and extensors (p < 0.001) after the intervention only in CTG. Combined aerobic and resistance training with functional exercises failed to improve PADL and ADL limitations in COPD. Eight weeks of conventional training improved ADL. This, however, was not superior to the results from the other groups and was not sustained at medium-term 12 weeks post-training. [ABSTRACT FROM AUTHOR]

Eccentric muscle contractions can cause structural damage to muscle cells resulting in temporarily decreased muscle force production and soreness. Prior work indicates pasture-raised dairy products from grass-fed cows have greater anti-inflammatory and antioxidant properties compared to grain-fed counterparts. However, limited research has evaluated the utility of whey protein from pasture-raised, grass-fed cows to enhance recovery compared to whey protein from non-grass-fed cows. Therefore, using a randomized, placebo-controlled design, we compared the effect of whey protein from pasture-raised, grass-fed cows (PRWP) to conventional whey protein (CWP) supplementation on indirect markers of muscle damage in response to eccentric exercise-induced muscle damage (EIMD) in resistance-trained individuals. Thirty-nine subjects (PRWP, n = 14; CWP, n = 12) completed an eccentric squat protocol to induce EIMD with measurements performed at 24, 48, and 72 h of recovery. Dependent variables included: delayed onset muscle soreness (DOMS), urinary titin, maximal isometric voluntary contraction (MIVC), potentiated quadriceps twitch force, countermovement jump (CMJ), and barbell back squat velocity (BBSV). Between-condition comparisons did not reveal any significant differences (p ≤ 0.05) in markers of EIMD via DOMS, urinary titin, MIVC, potentiated quadriceps twitch force, CMJ, or BBSV. In conclusion, neither PRWP nor CWP attenuate indirect markers of muscle damage and soreness following eccentric exercise in resistance-trained individuals. [ABSTRACT FROM AUTHOR]

The aim was to examine the directionality of global training effects in middle-aged women after unilateral training. Thirty-nine middle-aged female volunteers (59.4 ± 5.4 years) were randomly assigned to one of three groups: 1. Unilateral Dominant Lower Limb Training (UDLT); 2. Unilateral Non-Dominant Lower Limb Training (UNDLT) or 3. Control group. Outcome measures assessing isometric strength, static and dynamic balance were recorded at baseline, and 1 week after 12 weeks (post-test) of training or no-intervention. The net cross education adaptation changes of the contralateral quadriceps isometric maximum voluntary (MVC) force (F2,34 = 4.33; p = 0.022), Stork balance score (F2,34 = 4.26; p = 0.023) and the Star Excursion Balance test score (F2,34 = 11.80; p = 0.001) were asymmetrical in the UNDLT group and on average, exceeded the UDLT group. The results demonstrated asymmetrical cross education training adaptations with unilateral training of non-dominant leg (UNDLT) to contralateral homologous and heterologous muscles, with the exception of knee flexor MVC. The results of this study provide a novel exercise or rehabilitation strategy that can be employed when one of the limbs is affected. [ABSTRACT FROM AUTHOR]

Les Mills BODYPUMPTM is a resistance training group exercise class with a low load, high repetition format. Squat training in BODYPUMPTM has two key variables: depth and load. The study aim was to determine the effect of these parameters on the mean and peak EMG amplitude of vastus lateralis, gluteus maximus, biceps femoris and lateral gastrocnemius. Ten female BODYPUMPTM participants (age 41 ± 9 years, height 161.9 ± 3.8 cm, mass 67.7 ± 7.0 kg) performed 1 × 7 squats under four conditions, representing every combination of two depths (90° knee angle and 125° knee angle) and two loads (23% bodyweight and 38% bodyweight). The main effect of depth was significant for mean and peak activity of vastus lateralis and gluteus maximus, and peak activity of biceps femoris and lateral gastrocnemius. The main effect of load was significant for mean and peak activity of gluteus maximus and lateral gastrocnemius. There was no depth * load interaction. These data can be used to inform BODYPUMPTM programme design and amplify the training effect of participation in group exercise classes. [ABSTRACT FROM AUTHOR]

The aim of this study was to explore the acceptability of a 10-week progressive resistance training programme from the perspective of ambulatory adolescents with CP and physiotherapists. Semi-structured interviews were conducted with 32 adolescents with spastic CP, aged 10–19 years in Gross Motor Function Classification System (GMFCS) levels I–III, and 13 physiotherapists. Adolescents had completed a 10-week progressive resistance training programme and physiotherapists had delivered the programme. The Framework Method was used to analyse data. The analysis identified four themes. "It's do-able" described the acceptability of the programme structure, including the frequency of sessions and the duration of the programme. "They were difficult but I did it" described the acceptability of the exercises. "It is completely different," explored the experience of using equipment to progress the programme and "I wish I could do it on a permanent basis" discussed continuing to participate in resistance training. Findings suggest that resistance training is largely acceptable to adolescents and physiotherapists. Acceptability was enhanced by having a weekly supervised session and being able to adapt and progress the exercises to meet the individual's ability. However, there are challenges to implementing progressive resistance training as part of routine practice.Clinical trial registration number: ISRCTN90378161 Progressive resistance training is largely acceptable to ambulatory adolescents with cerebral palsy and physiotherapists. Adolescents' ability to complete the exercises increased their confidence and motivated them to continue with the programme. Adolescents valued being supervised by a physiotherapist and believed they needed a physiotherapist to progress the exercises and motivate them to perform to their maximum capacity. Within the National Health Service (NHS), limited time and equipment may prevent implementation of resistance training for adolescents with CP in accordance with guidelines. A short-term resistance training programme delivered by physiotherapists in the NHS may provide the foundation for continuing participation in resistance training in a community setting. [ABSTRACT FROM AUTHOR]

Few studies have reported the cardiovascular health effects of different high-intensity interval training (HIIT) protocols among sedentary young women. We investigated the impact of a traditional HIIT programme and a high-intensity circuit training (HICT) programme on lipid profiles and inflammatory cytokine levels in sedentary young women. Forty-two women were randomly assigned to HICT (body weight-based training), HIIT (cycling-based training), or control groups (n = 14 each). HICT and HIIT participants completed an 8-week training programme of three sessions per week. Total cholesterol (TC), triglyceride, high- and low-density lipoprotein, leptin, resistin, tumour necrosis factor-alpha (TNF-α), interleukin-8, and interferon-gamma levels were measured before and after the intervention. Post-intervention, TC and leptin were decreased in the HICT group. The HICT group also demonstrated increased lean mass, upper and lower limb strength, and balance, while the HIIT group displayed improved lower limb strength. Additionally, the control group showed significant increases in triglyceride levels, weight, body mass index, and fat mass. In conclusion, although both HICT and HIIT interventions showed improvements in cardiovascular health and physical fitness, participants in the HICT group experienced more health benefits. [ABSTRACT FROM AUTHOR]

The differences in strength development processes and maximum strength levels between cisgender men and women – i.e. the ‘strength gap’ – are considerably fraught topics, with significant implications for our broader understandings of sex and gender. The polarization of exercise science and sociocultural research about the relationships between strength, gender, and sex adds further challenges. As a result of their highly diverging conclusions on the strength gap as well as the general absence of communication between the two fields, it becomes nearly impossible to have meaningful discussions that acknowledge the not-just-biological, not-just-cultural complexities of strength development and maximal strength levels. To aid in connecting these seemingly disparate academic fields, this paper engages a biocultural reading of research on the strength training body. By framing the body as the ever-developing result of inextricably intertwined biological and cultural influences, this critical reading outlines the limitations of our current understandings of strength, illuminates areas of complexity and contradiction, demonstrates shared concepts, and suggests possible topics for boundary-crossing inquiry. [ABSTRACT FROM AUTHOR]

Preoperative inspiratory muscle training reduces the incidence of postoperative pulmonary complications after cardiac surgery, but training protocols vary widely in terms of intensity. Currently, the mechanisms underlying the effectiveness of this practice are not known. The purpose of the present study is to determine whether preoperative high-intensity inspiratory muscle training (HI-IMT) modulates the perioperative systemic inflammatory response in cardiac surgery patients. Participants awaiting surgical aortic valve replacement were randomized to 3 to 6 weeks preoperative home-based HI-IMT or same duration low-intensity inspiratory muscle training (LI-IMT). The primary outcome was the preoperative value of the soluble tumor necrosis factor receptor 1 (sTNFR1). Secondary outcomes assessed perioperative evolution of the cytokines: sTNFR1, Tumor necrosis factor-α, Interleukin (IL)-6, IL-8, IL10, IL1β, and their combined z-score; reflecting post-training and postoperative inflammatory response. Perioperative pulmonary function and postoperative clinical outcomes were collected. Between February 2018 and March 30, 2019 patients were randomized, to HI-IMT or LI-IMT. There were no differences between the groups in terms of baseline characteristics. The median (IQR) training duration was 34 (28–44) days. After training, the median (IQR) predicted maximal inspiratory pressure was higher in the HI-IMT vs LI-IMT group (119 (96–142%) vs 97 (81–107%); p =.04) Levels of the sTNFR1 cytokine increased during training in the HI-IMT group, pre vs post training (Median (IQR) 1073 (920; 1219) vs 1172 (965; 1368) ng/L; p =.03). The 24-h postoperative global inflammatory score was lower in the HI-IMT than in the LI-IMT group (Median (IQR), −0.37 (−0.62, 0.03) vs −0.10 (−0.17, 0.49), p =.04). Global inflammatory scores were not different at other time points. There were no significant differences between the groups in post-operative pulmonary function and postoperative clinical outcome. High intensity inspiratory muscle training shows immunomodulatory properties. These properties could explain why preoperative inspiratory muscle training can lead to lung protection after cardiac surgery. [ABSTRACT FROM AUTHOR]

The measurement of resistance training (RT) is often based on adaptations of aerobic physical activity measures which may not contain the elements necessary to assess RT. The purpose of this systematic review was to examine what measures are used to assess RT and appraise their composition. Specifically, the inclusion of frequency, duration, intensity, the use of major muscle groups, reps, and sets. Search terms included "resistance training," "strength training," OR "weight training" AND "behavior" OR "participation." Studies were evaluated based on whether RT measures assessed the key components of participation. In the 92 included studies, only one of the six components of the RT recommendations was assessed on average. This was almost exclusively frequency. Many assessments of RT were adapted from aerobic measures without rigorous validity evidence. Construct validity in RT measurement may lead to improved public health recommendations, surveillance of behavior, and precision in determining effective interventions and correlates. [ABSTRACT FROM AUTHOR]

Portable data collection devices and machine learning (ML) have been combined in autonomous movement analysis models for resistance training (RT) movements. However, input features for these models were mostly extracted empirically and subsequent models demonstrated limited interpretability and generalisability to real-world settings. This study aimed to investigate the utility of interpretable and generalisable modelling techniques and several data-driven feature extraction (FE) methods. This was achieved by developing machine learning movement analysis models for the barbell back squat and deadlift using markerless motion capture. 61 participants performed submaximal and maximal repetitions of both RT movements. Movement data was collected using two Azure Kinect cameras. Joint and segment kinematic variables were calculated from the collected depth imaging, and input features were extracted using traditional, manual FE methods and novel data-driven techniques. Classifiers were developed for several predefined technical deviations for both movements. Many of the addressed technical deviations could be classified with good levels of accuracy (≥70%) while the remainder were poor (55%–60%). Additionally, data-driven FE techniques were comparable to previous, traditional FE methods. Interpretable and generalisable modelling techniques can be utilised to good effect for certain classification tasks while data-driven FE techniques did not provide a consistent advantage over traditional FE methods. [ABSTRACT FROM AUTHOR]

Purpose: To determine whether performing resistance exercise in hypoxia acutely reduces performance and increases markers of fatigue, and whether these responses are exaggerated if exercising at high versus low work rates (i.e., exercising to failure or volume matched non-failure). Methods: Following a within-subject design, 20 men completed two trials in hypoxia (13% oxygen) and two in normoxia (21% oxygen). The first session for hypoxic and normoxic conditions comprised six sets of bench press and shoulder press to failure (high work rate), while subsequent sessions involved the same volume distributed over 12 sets (low work rate). Physical performance (concentric velocity) and perceptual responses were measured during exercise and for 72 hr post-exercise. Neuromuscular performance (bench throw velocity) was assessed pre- and post-session. Results: Hypoxia did not affect physical performance, neuromuscular performance, and perceptual recovery when exercising at high or low work rates. Higher work rate exercise caused greater acute decrements in physical performance and post-exercise neuromuscular performance and increased perceived exertion and muscle soreness (p ≤ 0.006), irrespective of hypoxia. Conclusions: Hypoxia does not impact on resistance exercise performance or increase markers of physical and perceptual fatigue. Higher exercise work rates may impair physical performance, and exaggerate fatigue compared to low work rate exercise, irrespective of environmental condition. Practitioners can prescribe hypoxic resistance exercise without compromising physical performance or inducing greater levels of fatigue. For athletes who are required to train with high frequency, decreasing exercise work rate may reduce post-exercise markers of fatigue for the same training volume. [ABSTRACT FROM AUTHOR]

Background: Regular exercise can mitigate the loss of strength, balance, and flexibility that contribute to age-related decline in physical function and mobility. However, traditional exercise interventions often report poor adherence rates. There is growing interest in classical ballet as an enjoyable exercise modality for adults in middle to late age. Classical ballet requires muscular strength, coordination, and flexibility. The current study investigated a classical ballet intervention on the balance, physical function, and range of motion of women aged over 50 years. Methods: Twenty-two healthy female participants (aged 56.2 (4.5) years (mean (SD)) completed a 10-week ballet intervention. Results: This single-arm study showed significant improvements (p<.05) in lower limb strength (measured by 5 times sit-to-stand and forward leap) and high adherence rates (95% adherence for participants who completed the intervention). No adverse events were reported. Improvements in balance were reported in the left leg only (as measured by center of pressure ellipse area in the parallel retiré condition). Conclusions: These results allude to the positive effects of ballet training on strength and balance in adults aged 50 years and over. High adherence rates suggest that ballet training was enjoyed and may thus be a long-term exercise modality for this population. Although this study was a single-arm design, it suggests promising results for future research wishing to evaluate the effectiveness of classical ballet training using randomized controlled trial designs. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of this study was to compare the effects of resistance training (RT) with inter-set static stretching (IS) versus traditional RT (TRT) on morphofunctional outcomes in recreationally resistance-trained male and female. Methods: Twenty-two recreationally-trained subjects were allocated to IS group (n = 12) or TRT (n = 10) and completed eight weeks of RT. The only difference between the groups was that IS group included static stretching between sets, while the TRT rested between the sets. Ultrasound images, dynamic and isometric strength tests for the elbow flexors and elbow extensors were evaluated pre- and post-intervention period. Results: Total training volume (TTV) was greater in TRT than IS (p =.031). TRT and IS caused similar increases in maximal dynamic and isometric strength. Fascicle length of the brachialis increased following TRT (p =.033); muscle thickness and the pennation angle of the distal portion of the triceps brachii increased following IS (p =.035 and p =.007, respectively). There were no significant changes in thickness and architecture for biceps brachii in either group. There were no significant differences between groups for any muscle strength and morphology outcome. Conclusion: IS negatively affects TTV but does not affect muscle strength and architecture of recreationally resistance-trained male and female. [ABSTRACT FROM AUTHOR]

Purpose: Albeit being a major determinant of exercise-related energy expenditure (EE), there is a lack of research on the excess post-exercise oxygen consumption (EPOC) after different exercise modalities in older adults. This study compared the EPOC after isocaloric bouts of resistance (RE) and aerobic (AE) exercise. Methods: The EE during exercise was determined through telemetric indirect calorimetry in ten physically active participants aged 63 to 82 years (5 women, 73 ± 6 years, 70.5 ± 9.9 kg, 161 ± 8 cm). The target EE in AE corresponded to values achieved during RE, and the EPOC was assessed for 30 min in the supine position. Results: The EE during AE and RE were 126.0 ± 30.7 kcal and 123.9 ± 30.6 kcal, respectively. The time to achieve the target EE was 2.3 times shorter in AE vs. RE. The EPOC magnitude was greater after AE (7.9 ± 2.4 L, 40.1 ± 11.1 kcal) than RE (5.9 ± 1.8 L, 26.9 ± 11.5 kcal). Conclusion: Older adults showed greater EPOC after isocaloric sessions of AE vs. RE. Additionally, AE had better temporal efficiency than RE to elicit a given EE. [ABSTRACT FROM AUTHOR]

Purpose: We aimed to investigate the chronic effects of low-load strength training (LT) with complete intermittent blood flow restriction (IBFR) on neural adaptations and strength in biceps brachii. Methods: Nineteen volunteers were randomly assigned into two different 9-week training protocols consisting of three assessment weeks and six training weeks: (a) LT with complete IBFR (LT-IBFR; n = 10) and (b) LT without complete IBFR (LT; n = 9). Strength was evaluated by predicted 1 repetition maximum (1RM) at weeks 1, 5, and 9 and neural function by root mean square (RMS) and median frequency (MDF) at sessions 1, 7, and 12 during the first three and last three repetitions. Both groups performed three sets of Scott curl with 20% of predicted 1RM interspersed with 90s rest twice a week. Results: No changes were found in predicted 1RM throughout the training protocols nor between groups. LT-IBFR group showed lower RMS in the first set than LT for the first three repetitions and higher RMS in all sets for the last three repetitions with decreases in this value across the sets with no longitudinal changes for both groups. MDF in the first three repetitions did not differentiate between groups, however, in the last three repetitions, MDF were lower for LTIBFR group in all sets and it increased across the sets for this condition with no chronical changes for both groups in both repetitions zones. These results suggest that LT-IBFR may be ineffective for increasing Q5 strength and it did not promote chronic neural adaptations. [ABSTRACT FROM AUTHOR]

This study aims to ascertain an in-depth understanding of current practices and perceptions of S&C training in high-level amateur female golfers. A cross-sectional, explorative survey study was constructed which asked questions relating to four key areas: i) general participant information, ii) current strength and conditioning (S&C) practices, iii) the perceived influence of S&C training on golf performance, and iv) knowledge and awareness of S&C. Results showed that the majority of female players had participated in some form of S&C training in the past, with the majority believing that clubhead speed and carry distance were the primary golfing metrics which could be positively impacted. More specifically, 91–97% of the players "Strongly agreed" or "Agreed" that the key physical characteristics for golf were strength and power for the lower and upper body, and flexibility. Interestingly, 58% of the players believed that S&C training should mimic the movement of the golf swing, which based off current evidence, is not how drive metrics and ultimately shots gained, can be maximised. This survey study provides useful information relating to the practices and perceptions of S&C training in high-level female amateur players and areas where education may be able to further advance player understanding of physical preparation. [ABSTRACT FROM AUTHOR]

The purpose of this case series was to observe physical performance changes following an 8-week nonlinear periodization training program on firefighters currently on light duty who were cleared to participate in full physical activities. Two firefighters underwent an 8-week nonlinear periodization program. Participant 1 was returning from anterior cruciate ligament reconstruction and participant 2 from a non-surgical low back injury. The Incumbent Physical Ability Test (IPAT), 2-minute push-up test, 300-yard shuttle, and Gerkin protocol testing were assessed at baseline, week 4, and week 8. Both participants demonstrated improvement in assessments of physical performance and fitness across each assessment point, with exception of the Gerkin protocol, and were able to return to full duty at the conclusion of their rehabilitation training program. The physical demands of tactical professionals such as firefighters exceed those of the general population. As such, these individuals require both job-specific programming and assessments when transitioning from an injury to full duty. An 8-week nonlinear periodization program yielded improvements in performance of firefighting tasks and physical fitness in two firefighters returning to full duty after injury and highlighted effective interprofessional collaboration between the physical therapy and fitness team. [ABSTRACT FROM AUTHOR]

The effect of MF induced by exposure time to social media smartphone apps on inhibitory control, heart rate variability (HRV), and high-intensity physical effort following a resistance exercise session might indicate whether strength and conditioning professionals should suggest avoiding smartphone usage before a resistance exercise session. The objective of this study was to analyze the effect of mental fatigue on inhibitory control, HRV, and countermovement jump (CMJ) in trained adults after resistance exercise. A total of 16 trained males (21.4 ± 3.3 years) volunteered in this study. The participants performed resistance exercises with and without mental fatigue. The Stroop Task, countermovement jump, and heart rate variability were evaluated before and after the resistance exercise. The participants used smartphones in the mental fatigue condition, whereas the participants watched TV in the control condition. No condition × time interaction was found for the Stroop accuracy (p = 0.87), CMJ (p = 0.68), SDNN (p = 0.15), or pNN50 (p = 0.15) in the heart rate variability. An interaction was found for Stroop response time (p = 0.01) with a higher response time for the mental fatigue condition (p = 0.01). Mental fatigue impaired the inhibitory control performance after a resistance exercise session in trained adults. [ABSTRACT FROM AUTHOR]

The effects obtained from resistance training depend on the exercise range of motion (ROM) performed. We aimed to examine the acute effects of different exercise ROM resistance training on the plantar flexor muscles. Eighteen healthy untrained male adults participated in three conditions: calf raises in 1) partial condition [final (short muscle length) partial ROM], 2) full condition (full ROM), and 3) control condition. The ankle dorsiflexion (DF) ROM, passive torque at DF ROM, passive stiffness of muscle-tendon unit, and maximal voluntary isometric contraction (MVC-ISO) torque were measured before and immediately after the interventions. There were significant increases in DF ROM, passive torque at DF ROM, and a decrease in MVC-ISO, but no significant interaction in passive stiffness. Post hoc test, DF ROM demonstrated moderate magnitude increases in the full condition compared to the partial (p = 0.023, d = 0.74) and control (p = 0.003, d = 0.71) conditions. Passive torque at DF ROM also showed moderate magnitude increases in the full condition compared to the control condition (p = 0.016, d = 0.69). MVC-ISO had a moderate magnitude decrease in the full condition compared to the control condition (p = 0.018, d=−0.53). Resistance training in the full ROM acutely increases joint ROM to a greater extent than final partial ROM, most likely due to stretch tolerance. [ABSTRACT FROM AUTHOR]

This study examined the influence of resistance training (RT) proximity-to-failure, determined by repetitions-in-reserve (RIR), on quadriceps hypertrophy and neuromuscular fatigue. Resistance-trained males (n = 12) and females (n = 6) completed an 8-week intervention involving two RT sessions per week. Lower limbs were randomised to perform the leg press and leg extension exercises either to i) momentary muscular failure (FAIL), or ii) a perceived 2-RIR and 1-RIR, respectively (RIR). Muscle thickness of the quadriceps [rectus femoris (RF) and vastus lateralis (VL)] and acute neuromuscular fatigue (i.e., repetition and lifting velocity loss) were assessed. Data was analysed with Bayesian linear mixed-effect models. Increases in quadriceps thickness (average of RF and VL) from pre- to post-intervention were similar for FAIL [0.181 cm (HDI: 0.119 to 0.243)] and RIR [0.182 cm (HDI: 0.115 to 0.247)]. Between-protocol differences in RF thickness slightly favoured RIR [−0.036 cm (HDI: −0.113 to 0.047)], but VL thickness slightly favoured FAIL [0.033 cm (HDI: −0.046 to 0.116)]. Mean volume was similar across the RT intervention between FAIL and RIR. Lifting velocity and repetition loss were consistently greater for FAIL versus RIR, with the magnitude of difference influenced by the exercise and the stage of the RT intervention. Terminating RT sets with a close proximity-to-failure (e.g., 1- to 2-RIR) can be sufficient to promote similar hypertrophy of the quadriceps as reaching momentary muscular failure in resistance-trained individuals over eight weeks, but the overall influence of proximity-to-failure on muscle-specific hypertrophy may also depend on other factors (e.g., exercise selection, order, and subsequent musculature targeted). Due to high repetition loss (from the first to final set) when sets are terminated at momentary muscular failure, performing RT with 1- to 2-RIR allows for similar volume load and repetition volume accumulation as reaching momentary muscular failure across eight weeks, possibly influencing the overall RT stimulus achieved. Performing RT to momentary muscular failure consistently induces higher levels of acute neuromuscular fatigue versus RT performed with 1- to 2-RIR; however, improved fatigue resistance overtime may attenuate acute neuromuscular fatigue and subsequent repetition loss (but may depend on the exercise performed). [ABSTRACT FROM AUTHOR]

The purpose of this study was to test whether believed versus actual acute creatine ingestion impacted resistance exercise performance. Fifteen men (21.9 ± 2.7 years old) completed four bouts of three sets each of squat and bench press to volitional fatigue at a 10RM load with 1-min between-sets rest interval. Thirty minutes prior to each exercise bout, they received the following treatments in a randomized order: 1) nothing (CON); 2) 0.3 g·kg−1 dextrose placebo (PLC); 3) 0.3 g·kg−1 dextrose, identified as creatine (Cr-False); 4) 0.3 g·kg 20 −1 creatine, identified as creatine (CrTrue). Between-treatments comparisons included the total repetitions completed and the rate of perceived exertion. Results revealed (p < 0.05) higher repetitions performed for all treatments versus CON for both squat and bench press. In the squat, more repetitions were performed with Cr-True (p < 0.001) and CrFalse (p < 0.001) than with either CON or PLC. Bayes Factor analyses revealed strong (PLC to Cr-True BF = 19.1) and very strong (PLC to CrFalse BF = 45.3) posterior probability favouring positive effects for both "creatine" conditions over PLC for the squat. In conclusion, in acute measures, belief versus ingestion of creatine yields similar exercise performance. [ABSTRACT FROM AUTHOR]

This study aimed to analyse the effects of a 16-week jump training program on the physical performance and lower extremities injury profile in semi-professional male soccer players. Participants were randomly assigned to the control group (CG; n = 13; age = 21.7 ± 3.6 years) or the experimental group (EG; n = 10; age = 22.3 ± 3.5 years). Countermovement jump (CMJ) height (cm), 30 m linear sprint time (s) with split times at 10 m and 20 m distances, and change of direction speed (CODS; 10 + 10 m with 90° turn) time (s) with turns using the dominant or non-dominant leg, were assessed before and after the intervention. Lower extremity injuries sustained throughout the intervention period were collected. Significant within-group improvements were found in EG in CMJ (p = 0.01; effect size [ES] = 1.03; large). Additionally, between-group difference after intervention was found in CMJ (F = 4.42; p = 0.013) in favour of EG. Injury burden was 194.86 (CG) vs 71.37 (EG) days of absence/1,000 h (RR = 2.73; 95% CI 2.10–3.54; p < 0.001). No other significant within-group or between-group differences were found. In conclusion, compared to regular soccer training, jump training was effective to improve jumping ability and burden in soccer players. [ABSTRACT FROM AUTHOR]

Isokinetic dynamometry is the clinical gold standard for strength assessment but testing protocols and outcome metrics can lack functional relevance. To quantify the influence of dynamometer configuration on eccentric hamstring strength metrics, 23 trained participants completed isokinetic eccentric knee flexor trials at 180°·s−1 in a seated and extended hip position. The extended position elicited a greater peak torque (P = 0.04) which was achieved at a significantly (P < 0.001) greater degree of knee flexion. Isokinetic range and functional range (defined as 85% of peak torque) were consistent at ~44° and ~21°, respectively, across trials, but were achieved with a more flexed knee in the extended hip configuration. Therefore, whilst the extended hip configuration might better reflect the biarticular nature of the hamstring musculature and the mechanism of hamstring strain injury, the sensitivity of strength metrics to configuration has implications for clinical assessment and training adaptations. [ABSTRACT FROM AUTHOR]

A balance disorder is prevalent in older people who cause psychological problems and physical injuries. According to the financial, time, and human resource limitations for developing an elderly rehabilitation ward, this study aims to identify the most significant preventive falling interventions in older population by using the Multi-Criteria Decision Making (MCDM) method to allocate resources to the most effective preventive interventions. First, through the literature review all effective balance interventions were extracted then panel discussion, the Delphi method, and the best-worst method (BWM) was employed to prioritize the preventive falling interventions. The result showed that the most significant preventive falling interventions were Neurofeedback (N1), Tai chi (D1), and Balance and strength training (E2) with a weight of 0.5956, 0.3771, and 0.3351are ranked first, second, and third among the criteria, respectively. The outcomes of the research help healthcare systems to allocate preventive care resources more efficiently. [ABSTRACT FROM AUTHOR]

This article questions the widely accepted belief that the institutionalization of human rights norms automatically results in their advancement and safeguarding. Instead, it proposes an alternative view, suggesting that the international human rights framework is intricately entangled with politicization. Focusing on the case of Jair Bolsonaro's presidency in Brazil, we argue that human rights bodies may serve antihuman-rights policies and propaganda. The article is divided into three sections, analyzing Bolsonaro's and Foreign Minister Ernesto Araújo's rhetoric on human rights, its direct echo in Brazil's votes in the United Nations Human Rights Council, and the resistance to Bolsonaro's policies by various actors in the international arena of human rights. We draw on existing scholarship, extensive corpus of speeches, reports, and media coverage to examine the Bolsonaro phenomenon and the limits and fragility of the international human rights regime and diplomacy in responding to it. [ABSTRACT FROM AUTHOR]

The aim of this study was to verify the concurrent validity and the biological error-free reliability of a novel low-cost commercial encoder (Ergonauta I). Validity protocol involved comparisons with a custom system and other encoder commercially available (Vitruve). Reliability protocols involved interdevices and interunit comparisons. No participants were recruited, and reliability assessments were performed in a Smith Machine by bar free fall tests. Our results showed a significant bias for mean velocity (MV) estimated by both encoders only in one of the four conditions investigated (bias = 0.05 m/s). Regarding sensitivity, the smallest detectable change suggests only values higher than 0.03 m/s must to be considered as real changes in performance, when monitoring MV and mean propulsive velocity (MPV) through Ergonauta I and Vitruve. Between-days intra-device reliability showed Ergonauta I remains highly reliable after one week for most assessments, whereas slightly less sensitive for peak velocity and peak power output. [ABSTRACT FROM AUTHOR]

AbstractPurposeMaterials and methodsResultsConclusions\nImplications for RehabilitationWheelchair users and people with disabilities have limited access to physical exercise due to various factors, including medical follow-up and training facilities. Although tele-exercise guided by experts has become a viable option, there is limited knowledge about the acute performance decrement (APD) resulting from remote training methods. The current cross-sectional study aimed to: (1) assess the APD of muscle resistance strength after three synchronous tele-exercise training methods in wheelchair users and (2) compare the training loads associated with each training method.Eighteen male and female wheelchair users who participated in tele-exercise strength practices were recruited. The participants performed a maximum resistance strength test by synchronous tele-assessment (push-up test, PUT) at baseline and immediately after three training methods: high-intensity interval training (HIIT), moderate-intensity continuous training (MICT) and sprint interval training (SIT). The primary outcome was the APD, which was measured by the percentage decrease in the number of repetitions of the PUT immediately after the training methods.APD was observed for all three training methods, with no significant differences between them (–34.8%, −29.9% and −38.0% for MICT, SIT and HII, respectively), and presented a non-significant correlation with the training loads. HIIT had a significantly higher training load than MICT and SIT.APD occurred in all training sessions, but did not correlate with training load, indicating that it is not an appropriate metric for comparison. Findings provide insight into APD response and highlight the need to consider multiple metrics when comparing training protocols.Synchronous moderate-intensity continuous training (MICT), sprint interval training (SIT) and high-intensity interval training tele-exercises provided similar acute performance decrement in wheelchair users and people with disabilities.High-intensity interval training showed a higher training load compared to MICT and SIT performed remotely.Acute performance decrement did not correlate with the training load.Synchronous moderate-intensity continuous training (MICT), sprint interval training (SIT) and high-intensity interval training tele-exercises provided similar acute performance decrement in wheelchair users and people with disabilities.High-intensity interval training showed a higher training load compared to MICT and SIT performed remotely.Acute performance decrement did not correlate with the training load. [ABSTRACT FROM AUTHOR]

This study examined the influence of inter-set rest periods of 1 (R1), 3 (R3) and 5 (R5) minutes on the number of repetitions completed before exceeding the minimum velocity thresholds of 0.45 m⋅s−1 (MVT0.45) and 0.35 m⋅s−1 (MVT0.35) during the bench press exercise. Twenty-three physically active individuals, 15 men and eight women, randomly completed six testing sessions consisting of four sets of the bench press exercise performed with maximal intent against 75% of the one-repetition maximum. Testing sessions differed in the length of inter-set rest periods (R1, R3, and R5) and MVT applied (MVT0.45 and MVT0.35). The number of repetitions was lower using shorter inter-set rest periods (R1 < R3 < R5), but R3 was more similar to R1 and R5 using MVT0.45 and MVT0.35, respectively. The fastest velocity of the set was reduced with the increment in the number of sets for the three protocols using MVT0.35 (greater reduction for shorter rest periods), but it was only reduced for R1 when using MVT0.45. The results suggest that, to maintain bench press mechanical performance, 5-min inter-set rest periods are necessary when sets are terminated close to failure (MVT0.35), while 3 min may suffice when sets are terminated farther from failure (MVT0.45). [ABSTRACT FROM AUTHOR]

Abstract Purpose Methods Results Conclusion \nImplications for Rehabilitation To examine the feasibility and effects of a functional high-intensity exercise intervention performed in a group-setting on functionality, cardiovascular health and physical performance in adolescents with cerebral palsy (CP).Ten adolescents with a diagnosis of CP (2 females; 16.6 ± 3.4 years; GMFCS: I-II) participated in a 12-week training intervention, containing progressive resistance training using free weights and high-intensity workouts twice a week. The six-minute walking test, arterial stiffness and physical performance (strength and power tests) were measured before and after the intervention.No adverse events were reported. We measured small increases in the six-minute walking test (Δ = 28.8 m, 95% CI [-1.78;52.7]; g = 0.34 [-0.04;0.72]) and a small reduction in arterial stiffness (Δ = −4.65% [-10.90;1.25]; g = −0.46 [-1.36;0.21]). All measures of physical performance increased (0.24 ≤ g ≤ 0.88).Functional training with free weights in high-functioning adolescents with CP is safe and effective in increasing parameters of physical performance and cardiovascular health. Positively influenced indicators of everyday independence (i.e. strength parameters) showed a transfer into movements of daily life. Concerns about adverse events through high-intensity training in adolescents with CP appear unjustified when training is performed progressively, following basic training principles. High-intensity functional exercise in a group-setting is safe in high functioning adolescents with cerebral palsy (CP) when following basic training principles. Compound, multi-joint movements performed at high intensities show a transfer-effect into daily functionality. High-intensity resistance training combined with anaerobic and aerobic exercise should be included in standard therapy for high-functioning adolescents with CP. The group-setting shows potential as innovative strategy for long-term training effectiveness. High-intensity functional exercise in a group-setting is safe in high functioning adolescents with cerebral palsy (CP) when following basic training principles.Compound, multi-joint movements performed at high intensities show a transfer-effect into daily functionality.High-intensity resistance training combined with anaerobic and aerobic exercise should be included in standard therapy for high-functioning adolescents with CP.The group-setting shows potential as innovative strategy for long-term training effectiveness. [ABSTRACT FROM AUTHOR]

This study aimed to analyze the effects of physical exercise (PE) on bone health in menopausal women through an umbrella review and to assess the quality of systematic reviews (SRs) and meta-analyses (MAs) included. The review was registered in PROSPERO (CRD42020208130) and the Rayyan application was used. The methodological quality of the included studies was evaluated by A MeaSurement Tool to Assess Systematic Reviews (AMSTAR), and Grading of Recommendations Assessment, Development and Evaluation (GRADE) was applied to assess the level of evidence of the results. The results showed that low-intensity jumping exercises with longer sessions proved to be efficient in the hip segment. Swimming requires further investigation, as it showed high heterogeneity. Aerobic and resistance exercises showed inconsistent results, requiring further studies with these modalities of PE. Concurrent training showed improvements in the lumbar spine, femoral neck, Ward’s triangle and trochanter. Finally, combined resistance exercises are effective in preserving bone mineral density (BMD) of the femoral neck and lumbar spine in postmenopausal women. In conclusion, jumping exercises were efficient in the hip, while aerobic and resistance exercises are still inconsistent. Concurrent training showed improvements in BMD of the lumbar spine, femoral neck, Ward’s triangle and trochanter. Finally, combined resistance protocols are effective in preserving BMD of the femoral neck and lumbar spine in postmenopausal women. [ABSTRACT FROM AUTHOR]

Purpose: Physical activity and exercise are critical for older adults' physical and mental health. The purpose of this qualitative study was to richly capture the motivators of and barriers to engaging in physical activity in previously inactive older adults who participated in a threearm randomized controlled trial (RCT) of eight-week group exercise interventions. Methods: We conducted a qualitative content analysis of individual interviews with fifteen participants--five from each study arm: strength training, walking, and inactive control. Participants included nine females and six males ranging from 60 to 86 years of age. Results: Key motivators of physical activity included perceived improvements in physical and mental health, positive social influences, observed health deterioration in others, and the desire to spend time with and take care of family members. Barriers to physical activity included existing health conditions, fear of getting hurt, negative social influences, perceived lack of time and motivation, inconvenient times and locations, and monetary cost. Conclusions: Our findings add to the body of literature identifying factors that motivate and stand in the way of older adults' engagement in physical activity. These factors influence older adults' self-efficacy and should be incorporated into the design of new and existing programs to encourage initiation and maintenance of physical activity. [ABSTRACT FROM AUTHOR]

Proper nutrition and exercise are effective strategies to improve overall metabolic health in diabetic patients. This study evaluated the effects of Nigella sativa (NS) supplementation during resistance training (RT) on some biochemical variables in type 2 diabetes patients. Forty patients were assigned to groups: RT + NS (RN), NS, RT + placebo (RP), and control (CO). RT was performed and NS was consumed for 8 weeks. Blood samples were collected at rest immediately before and after the 8 week intervention. RT or NS by themselves reduced HOMA-IR, insulin, glucose, TG, TC, LDL, ESR, CRP, AST, ALT and ALP, and increased HDL and HOMA-S. The combination of RT and NS, rather than each intervention alone, had significant effects on reduction of HOMA-IR, insulin, ESR and CRP as well as increases in HDL, HOMA-β/S. RT combined with NS is sometimes a better strategy compared to single interventions for improving diabetes related biomarkers in type 2 diabetic patients. [ABSTRACT FROM AUTHOR]

Diastasis recti abdominis (DRA) affects a significant number of women in the postpartum period. This study compared the effectiveness of suspension training system (STS) with that of isometric-isotonic (ISoM-ISoT) exercises in the treatment of DRA and its secondary complications. Thirty-six women with DRA participated in this study. They were divided into the three groups of STS, ISoM-ISoT, and control. Inter-recti distance (IRD), proprioception, lumbopelvic control, postural stability, low back pain, and disability were assessed using a digital caliper, a goniometer, a lateral step-down test, a Biodex balance system, a visual analogue scale (VAS), and the Oswestry Disability Index (ODI), respectively. Two intervention groups underwent training for 8-week and the control group resumed their normal lives. Positive effects were observed in the STS and ISoM-ISoT groups compared with the control group in: IRD (P =.001); lumbopelvic proprioception (P =.001); lumbopelvic control (P =.001); overall static balance (P =.010); overall dynamic balance (P =.012); low back pain (P =.001); and disability (P =.001). However, there was no significant difference between the training groups in: IRD (P =.12, MD = −2.76); lumbopelvic proprioception (P =.48, MD = −0.50); lumbopelvic control (P =.14, MD = 1.53); static balance (P =.62, MD = 0.07); dynamic balance (P =.27, MD = 0.33); pain (P =.25, MD = −0.52); and disability (P =.48, MD = −1.74). The results of the minimal clinically important difference (MCID) and minimal detectable change (MDC) suggested that the STS exercises outperformed ISoM-ISoT training regarding IRD, pain, disability, and proprioception, whereas ISoM-ISoT training had a better effect in lumbopelvic control and balance. The results of our study showed that the STS had a positive effect on women with DRA and like the ISoM-ISoT exercises can be used to treat this dysfunction. [ABSTRACT FROM AUTHOR]

Embodying fit avatars in virtual reality (VR) is proposed as a possible treatment for cortical body representations and pain-related self-perceptions. To explore consumer perceptions of a novel VR intervention (VR-BiT) for chronic low back pain. Adults (n = 17, mean age(SD) = 52(14)) with chronic low back pain who had undergone a single session of VR-BiT as part of a randomized controlled trial underwent a semi-structured interview using open-ended questions. Interviews were audio-recorded, transcribed verbatim, and analyzed thematically. Data reduction identified four themes: clinically beneficial and beyond; helping and hindering use; desire for more; and individualized future. Participants experienced wide ranging effects, including improved physical self-efficacy, pain, ability to perform physical activity and psychological symptoms. The intervention was well tolerated, except for two reports of nausea, and a few participants indicating pain associated with unaccustomed movement. Most participants were motivated to use VR-BiT again, despite some having technical issues. Participants suggested that personalizing VR-BiT and regular use would be beneficial. There was strong consumer support for further use of VR-BiT. Future studies of VR-BiT effectiveness are warranted and should consider incorporating individual user preferences, including people with diverse pain presentations, and involving a multi-session design. [ABSTRACT FROM AUTHOR]

This systematic review and meta-analysis investigated the effects of Elastic Resistance Training (ERT) on functional capacity (FC) in older adults. The databases used were Embase, Virtual Health Library, PubMed, SciElo, Scopus, SPORTS Discus, and Web of Science. Eligibility criteria: aged ≥ 60 years; both sexes; intervention of at least 8 weeks; structured ERT; comparator group that performed other types of training or without any intervention; at least one functional test measurement. Functional tests were grouped according to their specificity for the sub-group meta-analyses. Twenty-six studies were considered eligible for qualitative synthesis, of which 16 were used for quantitative analysis. Favorable effects (p <.001) of ERT compared to the control group without intervention were observed in the 30-second sit to stand test, Timed Up and Go test, arm curl test, handgrip strength test, 6-minute walk test, lower and upper limb flexibility, and Short Physical Performance Battery (p =.007). Comparisons between ERT and other types of training were not performed because of the high heterogeneity of the studies. Our findings suggest that ERT is able to improve the FC of older adults when compared to older adults not involved in any type of training. [ABSTRACT FROM AUTHOR]