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Introduction: Aerobic training can be conducted using the maximum heart rate (HRmax) target zone. This type of training is relevant to improving aerobic fitness and can help Brazilian jiu-jitsu athletes maintain optimal performance during and between matches. However, due to the lack of specificity of the generic equations in systematizing the training, the values can be overestimated, because athletes show specific morphophysiological adjustments. Objective: The aim was to investigate the relationship between HRmax as estimated by means of formulas and HRmax as reached in graded exercise tests (GTX) in both the laboratory and the field. Methods: 13 male Brazilian jiu-jitsu athletes had their HRmax determined in GTX on the treadmill and in the field, and the HRmax was calculated based on FOX and TANAKA equations. Results: The HRmax value by the means equation FOX-HRmax (189 ± 6 bpm) was greater in comparison with the GTX (on treadmill: 183 ± 7 bpm; field test: 180 ± 10 bpm; p < 0.05). The equation TANAKA-HRmax (185 ± 4 bpm) showed higher values when compared to the field test (180 ± 10 bpm; p < 0.05). No differences were observed between TANAKA-HRmax and GTX on the treadmill (p > 0.05). The correlation observed was between FOX-HRmax and TANAKA-HRmax: (r = 0.99; p < 0.01). Conclusion: FOX-HRmax and TANAKA-HRmax tend to overestimate the results compared to GTX. Thus, HRmax equations should be used and analyzed with caution. Conducting GTX is recommended to establish accurate values of HR. [ABSTRACT FROM AUTHOR]

Background: Children diagnosed with autism spectrum disorders are shown to have poor periodontal health and dental hygiene habits. Extensive research has revealed that parents of children with autism spectrum disorder (ASD) frequently encounter heightened levels of stress, despair, and anxiety in comparison to parents of neurotypical children. The aim was to understand the relationship between the dental hygiene of children with ASD and the stress generated in their parents. Methods: A scoping review was carried out to identify any gaps or research opportunities for clinical practice concerning oral care and stress levels in parents in the PubMed, Medline, ScienceDirect, and Scopus databases. Results: A total of 139 articles were reviewed. Of these, only 10 met the selection criteria for inclusion. Our results reveal a lack of studies presenting evidence on the topic of poor dental hygiene in children with ASD and high stress levels in their parents. Discussion: There is ample evidence that children with ASD have poor dental hygiene, as well as higher levels of stress in their parents. However, little or no evidence links these two variables. Future studies should focus on this link, which could have practical implications for improving dental care for children with ASD. [ABSTRACT FROM AUTHOR]

Thoracic expandability can be affected by excess body fat. Therefore, the present study aimed to compare forced vital capacity (FVC) and forced expiratory volume (FEV) in the first second before and after a respiratory exercise program for obese elderly patients. It is a quasi-experimental and longitudinal study, which used respiratory kinesiotherapy as a method of intervention in obese elderly people. Participants were assessed before and after the intervention using spirometry. There was no significant difference in the values of FVC (p = 0.39) and FEV1 (p = 0.53), both before and after intervention. Based on the results presented, it is concluded that 12 weeks of intervention of respiratory kinesiotherapy does not cause significant changes in lung capacity in obese elderly. [ABSTRACT FROM AUTHOR]

The objectives of this study were to develop normative tables to classify judo athletes by maximal isometric strength and muscular power, and to compare performance at different competitive levels. 102 male athletes performed tests of maximal isometric handgrip strength (MIHS), scapular humeral traction (MISHT), lumbar traction (MILT), lower body traction (MILBT), plyometric push-up (PPU), countermovement jump (CJ) and squat jump (SJ). Performance was classified as: ≤ 10th percentile = very poor, 11-25th percentile = poor, 26-75th percentile = regular, 76-90th percentile = good and > 90th percentile = excellent. Classification relative to body mass [isometric (kg/kg) and power (cm kg)] was as follows: MIHS—very poor: ≤ 0.81; poor: 0.82-0.96; regular: 0.97-1.51; good: 1.52-1.79; excellent: ≥ 1.80, MILT—very poor: ≤ 1.14; poor: 1.15-1.41; regular: 1.41-2.0; good: 2.0-2.5; excellent: ≥ 2.6, MILBT—very poor: ≤ 1.15; poor: 1.16-1.44; regular: 1.45-2.15; good: 2.16-2.62; excellent: ≥ 2.63, MISHT—very poor: ≤ 0.34; poor: 0.35-0.41; regular: 0.42-0.62; good: 0.63-0.73; excellent: ≥ 0.74, PPU—very poor: ≤ 635.4; poor: 635.5-901.9; regular: 902.0-1801.4; good: 1801.5-2369.7; excellent: ≥ 2369.8, SJ—very poor: ≤ 1690.7; poor: 1690.8-1990.3; regular: 1990.4-3387.9; good: 3388.0-4029.4; excellent: ≥ 4029.5 and CJ—very-poor: ≤ 1775.4; poor: 1775.5-2195.4; regular: 2195.5-3667.2; good: 3667.3-4208.3; excellent: ≥ 4208.4. State athletes had lower MISHT (p = 0.015) than international athletes and lower CJ than national athletes (p = 0.05). International athletes showed better PPU performance than others (p < 0.05). MIHS, MISHT and PPU were sensitive to identify differences between competitive level of judo athletes (state, national and international level). [ABSTRACT FROM AUTHOR]

Objectives: The present study aimed to evaluate the effects of using hyperbaric oxygen therapy during post-training recovery in jiu-jitsu athletes. Methods: Eleven experienced Brazilian jiu-jitsu athletes were investigated during and following two training sessions of 1h30min. Using a cross-over design, the athletes were randomly assigned to passive recovery for 2 hours or to hyperbaric oxygen therapy (OHB) for the same duration. After a 7-day period, the interventions were reversed. Before, immediately after, post 2 hours and post 24 hours, blood samples were collected to examine hormone concentrations (cortisol and total testosterone) and cellular damage markers [creatine kinase (CK), aspartate aminotransferase (AST), alanine aminotransferase (ALT), and lactate dehydrogenase (LDH)]. Moreover, the rating of perceived exertion (RPE) and recovery (RPR) scales were applied. Results: Final lactate [La] values (control: 11.9 ± 1.4 mmol/L, OHB: 10.2 ± 1.4 mmol/L) and RPE [control: 14 (13–17 a.u.), OHB: 18 (17–20 a.u.)] were not significantly different following the training sessions. Furthermore, there was no difference between any time points for blood lactate and RPE in the two experimental conditions (P>0.05). There was no effect of experimental conditions on cortisol (F1,20 = 0.1, P = 0.793, η2 = 0.00, small), total testosterone (F1,20 = 0.03, P = 0.877, η2 = 0.00, small), CK (F1,20 = 0.1, P = 0.759, η2 = 0.01, small), AST (F1,20 = 0.1, P = 0.761, η2 = 0.01, small), ALT (F1,20 = 0.0, P = 0.845, η2 = 0.00, small) or LDH (F1,20 = 0.7, P = 0.413, η2 = 0.03, small). However, there was a difference between the two experimental conditions in RPR with higher values at post 2 h and 24 h in OHB when compared to the control condition (P<0.05). Conclusions: Thus, it can be concluded that OHB exerts no influence on the recovery of hormonal status or cellular damage markers. Nonetheless, greater perceived recovery, potentially due to the placebo effect, was evident following the OHB condition. [ABSTRACT FROM AUTHOR]

The original article can be found online. [ABSTRACT FROM AUTHOR]

Background/Objectives: This study aimed to assess and compare the effects of an adapted taekwondo (TKD) program, multicomponent training (MCT), walking exercise (WE), and inactive control group (CG) on blood pressure, morphological variables, frequency of food consumption, cognitive status, health-related quality of life (HRQoL), physical fitness tests, and postural balance in independent older females. Methods: A randomized controlled trial study was conducted with the following groups: TKD (n = 13), MCT (n = 12), WE (n = 12), and CG (n = 14), considering three/weekly 60-min/sessions for 16-weeks. A two-factor mixed analysis of the variance model with repeated measures was performed. Results: TKD improved significantly more in phonetic fluency (p = 0.021; ES = 1.89) than WE and in general health (p = 0.033; ES = 1.11) than CG. Both TKD and MCT improved significantly more than CG in the 30 s chair stand, arm curl, chair sit-and-reach, timed up-and-go, maximal isometric handgrip strength, and postural balance for the eyes closed condition in the area and anteroposterior velocity (p < 0.05). Conclusions: Only TKD improved the area (p = 0.008; ES = 1.00) and mediolateral velocity (p = 0.019; ES = 0.79) for the eyes open condition, and mediolateral velocity (p = 0.021; ES = 1.57) for the eyes closed condition. Blood pressure, morphological variables, and food consumption frequency showed no significant intragroup or intergroup interactions. TKD equivalently improved HRQoL and physical fitness to MCT, with better postural balance in older females. [ABSTRACT FROM AUTHOR]

Background: This study aimed to analyze the effects of elastic band training (EBT) versus multicomponent training (MCT) and group-based dance (GBD) on waist circumference, body composition (body fat percentage and fat-free mass), and physical performance (handgrip strength, HGS; 30-s chair stand; timed up-and-go, TUG) in Chilean older women. Methods: This is a randomized controlled trial with three parallel groups: EBT (n = 10), MCT (n = 10), and GBD (n = 10). Two 60-min sessions per week for 8 weeks were dedicated to the interventions with pre- and post-assessments. A two-factor mixed ANOVA model with repeated measures was performed to measure the time × group effect. Results: Multiple comparisons revealed significant differences between EBT and MCT in the body fat percentage (p = 0.001; ES = 2.488, large effect) in favor of MCT, while HGS in the non-dominant hand (p = 0.044; ES = 0.158) was in favor of EBT. In the intragroup results, only the MCT significantly decreased the body fat percentage (p = 0.044; ES = 0.426, small effect), and EBT significantly increased HGS in the dominant (p < 0.001; ES = 0.977, large effect) and non-dominant (p < 0.001; ES = 0.583, moderate effect) hands and improved the 30-s chair stand (p = 0.003; ES = 1.612, large effect) test. The GBD did not report significant changes. Conclusions: MCT significantly reduced the body fat percentage regarding EBT, and EBT significantly improved HGS in the non-dominant hand regarding MCT, with no differences reported in the rest of the analyzed variables between the groups. [ABSTRACT FROM AUTHOR]

Recently in the Journal of Sports Sciences, Schaun et al. published a study on the comparison of energy expenditure between high-intensity interval training and moderate continuous training performed in water. With this Letter to the Editor, we would like to comment on the methodological aspects that should be considered to analyze the results presented, as well as the conclusions. Abbreviations: CONT, moderate-intensity continuous training; EPOC, excess post-exercise oxygen consumption; HIIT, high-intensity interval training; VO2max, maximal oxygen consumption. [ABSTRACT FROM AUTHOR]

Background: Tinnitus refers to a common disorder affecting older adults frequently. This condition can disturb mental health and psychological well-being and contribute to cognitive decline. Despite recent advances in research, its pathophysiology remains incompletely understood. Therefore, this study aimed to investigate the sensation of tinnitus, its consequences on the quality of life of older adults, and its correlation with cytokine levels. Methods and material: This cross-sectional study included a sample of 103 independent older adults. Information regarding clinical history, tinnitus, and hearing loss was obtained through interviews. Assessment of tinnitus intensity and resulting impairments was conducted using Visual Analogue Scale (VAS) and Tinnitus Handicap Index (THI), respectively. Subjects underwent audiological evaluation and were measured for inflammatory markers. Statistical analyses included chi-square, Mann–Whitney, and Kruskal–Wallis tests and calculation of the effect size (Φ). Results: The condition of older adults with tinnitus (51.5%) was associated with hearing loss and previous noise exposure. No differences were observed in the cytokines between groups with and without tinnitus (P > 0.05), whereas a difference was found in the interleukin-10 (IL-10) of the male group (P = 0.016; r = 0.69). In those with tinnitus, VAS had a median and (interquartile range) of 5 (2–7), and the values were 21 (10–38) for THI. In addition, VAS and minimum masking level exhibited a significant correlation with IL-6 (P = 0.018; rs = 0.335) and IL-2 (P = 0.035; rs = 0.299), respectively. Furthermore, the groups with intense and mild VAS presented different levels of tumour necrosis factor alpha (TNF-α) (P = 0.041; E 2R = 0.12). Conclusion: The results reveal an association between tinnitus and hearing loss and previous noise exposure. Moreover, increased sound-masking levels and VAS correlated with IL-2 and IL-6, respectively. TNF-α levels varied between the mild and intense VAS groups. [ABSTRACT FROM AUTHOR]

Background/Objectives: This study aimed to compare the effects of Xbox Kinect Sports (XKS) regarding Nintendo Switch Sports (NSS) and an inactive control group (CG) on body composition (body fat percentage, BFP; and fat-free mass) and physical performance (maximal isometric handgrip strength, MIHS; 30-s chair stand, 30-S; timed up-and-go, TUG; sit-and-reach; and 2-min step) in physically inactive older females. Methods: A randomized controlled trial study was conducted with three parallel groups: XKS (n = 13), NSS (n = 14), and CG (n = 16) considering three weekly 60-min sessions for 12 weeks with pre- and post-assessments. Results: A two-factor mixed analysis of variance (ANOVA) model with repeated measures was performed to measure the time × group effect. Multiple comparisons revealed significant differences in BFP (F(2,18) = 6.12; p = 0.005; ηp2 = 0.226, large effect), 30-S (F(2,18) = 20.7; p = 0.000; ηp2 = 0.496, large effect), TUG (F(2,18) = 10.0; p = 0.000; ηp2 = 0.323, large effect), sit-and-reach (F(2,18) = 37.3; p = 0.000; ηp2 = 0.640, large effect), and 2-min step (F(2,18) = 9.85; p = 0.000; ηp2 = 0.319, large effect) in favor of XKS regarding NSS and CG. The intragroup results only present in XKS a significant decrease in BFP (p = 0.02; d = 0.98) and significant improvements in the 30-S (p = 0.000; d = 1.88), TUG (p < 0.01; d = 2.00), sit-and-reach (p = 0.003; d = 2.58), and 2-min step (p = 0.004; d = 1.05). Conclusions: training using XKS significantly decreases BFP and improves 30-S, TUG, sit-and-reach, and 2-min step in physically inactive older females. [ABSTRACT FROM AUTHOR]

Aim: To evaluate the effects of multi-disciplinary family and individual interventions on the psychosocial and behavioral parameters of obese adolescents. Methods: This study is a pragmatic trial with parallel groups and repeated measures. Twenty-four overweight adolescents finished 12 weeks of intervention and were included in the statistical analysis. They were allocated into two convenience groups: a group with parents (PG) and a group without parents, i.e., alone (AG). The sample of adolescents was evaluated through the Behavior Change Readiness Questionnaire (BCRQ) and the Depression, Anxiety, and Stress Scale for Adolescents (DASS-A). In addition, parents performed the Parenting Style and Dimensions Questionnaire (PSDQ). The subjects participated in a multi-disciplinary Obesity Treatment Program (MOTP), in which theoretical and practical activities, three times a week (theoretical activities: nutritional education and psychoeducation, both once a week, lasting 30 min a day) and practical activities with physical exercises lasting 1 h a day. Results: The age of adolescents was 13.8 ± 2.4 years old. For the QPMC, a time effect was found, with an increased readiness to change levels for portion control (p = 0.009) and control of fat consumption (p = 0.008) after the interventions. There was no time effect for fruit and vegetable consumption and physical activity (p > 0.05 for both comparisons). No interaction effect was found between groups for any of the behavioral change domains of BCRQ (p > 0.05). DASS-A showed a time effect with reduced stress (p = 0.041) and depression levels (p = 0.036) after the interventions. There was no effect of time for anxiety and no interaction effect between groups for any of the components of DASS-A (p > 0.05 for all comparisons). As for the parental styles evaluated by the BCRQ, the parents of both groups showed predominantly democratic styles throughout the MOTP. Conclusion: Despite the proven effectiveness of MOTPs in preventing and treating obesity and its comorbidities in adolescents, participation with parents still cannot be considered a predictive factor for significant differences in the parameters evaluated in 12 weeks of intervention. [ABSTRACT FROM AUTHOR]

Background: This study evaluates the heart rate variability (HRV), body composition parameters, physical activity level means by International Physical Activity Questionnaire (IPAQ), and sleep quality [means by Pittsburgh Sleep Quality Index (PSQI)] in non-obese, overweight, and obese individuals. Methods: 51 adults were included in this study. The age of the participants ranged from 18 to 39 years old, and they underwent vital signs measurement, nutritional status classification means body mass index (BMI), and body composition through the bioelectrical impedance (BIA), questionnaires (IPAQ and PSQI), and HRV measurement. Results: The most influenced body composition variables in the normal weight, overweight, and obese groups were age, body weight, BMI, resting metabolic rate, visceral fat level (VFL), skeletal muscle mass, body fat mass (BFM), body fat percentage, and minerals with p < 0.05, for all comparisons. The stress index (SI) was the HRV variable most influenced by different levels of BMI p < 0.05. The PSQI was more influenced by body water, lean mass, fat-free mass, and proteins, with p < 0.05. Furthermore, SI was the only HRV index that negatively correlated (r = − 0.395; p < 0.05) with physical activity (PA) and BFM (r = − 0.409; p < 0.05). Conclusion: Obesity increases stress and sleep disturbance and is reduced with increased PA levels. In addition, PA level was negatively associated with SI and BFM. [ABSTRACT FROM AUTHOR]

COVID-19 sequelae are varied, and whether they are temporary or permanent is still unknown. Identifying these sequelae may guide therapeutic strategies to improve these individuals' recovery. This prospective cohort aimed to assess body composition, cardiopulmonary fitness, and long-term symptoms of overweight individuals affected by COVID-19. Participants (n = 90) were divided into three groups according to the severity of acute COVID-19: mild (no hospitalization), moderate (hospitalization, without oxygen support), and severe/critical cases (hospitalized in Intensive Care Unit). We assessed body composition with a tetrapolar multifrequency bioimpedance, hemodynamic variables (heart rate, blood pressure, and peripheral oxygen saturation-SpO2) at rest, and the Bruce test with direct gas exchange. Two assessments with a one-year interval were performed. The most prevalent long-term symptoms were memory deficit (66.7%), lack of concentration (51.7%), fatigue (65.6%), and dyspnea (40%). Bruce test presented a time effect with an increase in the distance walked after 1 year just for severe/critical group (p < 0.05). SpO2 was significantly lower in the severe/critical group up to 5 min after the Bruce test when compared to the mild group, and diastolic blood pressure at the end of the Bruce test was significantly higher in the severe/critical group when compared to mild group (p < 0.05; for all comparisons). A time effect was observed for body composition, with increased lean mass, skeletal muscle mass, fat-free mass, and lean mass just for the severe/critical group after 1 year (p < 0.05). Cardiopulmonary fitness parameters did not differ among the groups, except for respiratory quotient with higher values for the severe/critical group when compared to itself after 1 year. All COVID-19 patients might present long-term sequelae, regardless of the acute disease severity. Reassessing and identifying the most prevalent long-term sequelae are essential to perform more precise health promotion interventions. [ABSTRACT FROM AUTHOR]

Background: Sarcopenia is a syndrome associated with aging that causes progressive loss of skeletal muscle mass and muscle function. In this pilot study, we compared the effectiveness of elastic band training regarding group-based dance on fat mass, fat-free mass, handgrip strength (HGS; dominant and non-dominant hand), leg strength, timed up-and-go (TUG) and walking speed in older women with sarcopenia. Methods: This is a randomized controlled trial, single-blind, repeated measures of parallel groups (elastic band group: EBG, n = 21; group-based dance: GBD, n = 19), and a quantitative methodology. Three 60-minute sessions per week for 12 weeks were dedicated to the interventions with pre- and post-assessments. A two-factor mixed analysis of variance (ANOVA) model with repeated measures was performed to measure the group×time effect. Results: A significant interaction revealed for fat-free mass (F1,16= 18.91; p < 0.001; EBG + 10.9% vs. GBD − 1.97%), HGS dominant hand (F1,16= 7.44; p = 0.014; EBG + 10.9% vs. GBD + 0.59%), HGS non-dominant hand (F1,16= 6.41; p = 0.022; EBG + 10.21% vs. GBD + 3.80%), leg strength (F1,16= 17.98; p < 0.001; EBG + 9.1% vs. GBD + 3.83%), TUG (F1,16= 7.52; p = 0.014; EBG − 14.7% vs. GBD − 1.0%) and walking speed (F1,16 = 6.40; p = 0.019; EBG − 7.6% vs. GBD − 4.35%) in favor of EBG. Conclusion: Elastic band training produces significantly greater responses on physical-functional performance regarding group-based dance in older women with sarcopenia. On the other hand, the EBG revealed a significant improvement in fat-free mass and upper and lower limb muscle strength, as well as a significant decrease time in TUG, and walking speed. Elastic band exercise is a safe, easy, affordable, and effective physical activity strategy, according to the findings. [ABSTRACT FROM AUTHOR]

BACKGROUND: Moderate-intensity interval training (MIIT) may be a viable exercise format for improving body composition, aerobic fitness, and health-related variables. OBJECTIVES: This randomized trial aimed to analyze the effect of MIIT or high-intensity interval training (HIIT) on aerobic fitness, body composition variables, and resting metabolic rate (RMR) in women with overweight or obesity. METHODS: 31 sedentary adult women with overweight or obesity performed 7 weeks × 3 weekly sessions of either HIIT or MIIT. Physical and physiological tests were applied before and after training. RESULTS: In both analyses (intention-to-treat and by adherence to the training), aerobic fitness showed a time effect (p = 0.041 and p = 0.015), but without differences between groups (p > 0.05). No group (HIIT vs. MIIT), time (pre vs. post), or interaction effects (group vs. time) were found for RMR, body composition markers (fat mass, body fat percentage, lean mass), or body mass index – BMI (p > 0.05). In addition, MIIT induced a relatively high drop-out rate. CONCLUSIONS: This study suggested that the short-term (7-weeks) interval exercise training was effective for increasing aerobic fitness, and moderate-intensity intervals were as effective as high-intensity intervals. However, neither training format was effective for changing RMR, body composition variables, or BMI of women with overweight or obesity. Clinical trial ID: RBR-9jd7b7. [ABSTRACT FROM AUTHOR]

COVID-19 sequelae are varied, and whether they are temporary or permanent is still unknown. Identifying these sequelae may guide therapeutic strategies to improve these individuals' recovery. This prospective cohort aimed to assess body composition, cardiopulmonary fitness, and long-term symptoms of overweight individuals affected by COVID-19. Participants (n = 90) were divided into three groups according to the severity of acute COVID-19: mild (no hospitalization), moderate (hospitalization, without oxygen support), and severe/critical cases (hospitalized in Intensive Care Unit). We assessed body composition with a tetrapolar multifrequency bioimpedance, hemodynamic variables (heart rate, blood pressure, and peripheral oxygen saturation-SpO2) at rest, and the Bruce test with direct gas exchange. Two assessments with a one-year interval were performed. The most prevalent long-term symptoms were memory deficit (66.7%), lack of concentration (51.7%), fatigue (65.6%), and dyspnea (40%). Bruce test presented a time effect with an increase in the distance walked after 1 year just for severe/critical group (p < 0.05). SpO2 was significantly lower in the severe/critical group up to 5 min after the Bruce test when compared to the mild group, and diastolic blood pressure at the end of the Bruce test was significantly higher in the severe/critical group when compared to mild group (p < 0.05; for all comparisons). A time effect was observed for body composition, with increased lean mass, skeletal muscle mass, fat-free mass, and lean mass just for the severe/critical group after 1 year (p < 0.05). Cardiopulmonary fitness parameters did not differ among the groups, except for respiratory quotient with higher values for the severe/critical group when compared to itself after 1 year. All COVID-19 patients might present long-term sequelae, regardless of the acute disease severity. Reassessing and identifying the most prevalent long-term sequelae are essential to perform more precise health promotion interventions. [ABSTRACT FROM AUTHOR]

Objectives: The aim of this study was to evaluate the effect of caffeine ingestion on performance and estimated energy system contribution during simulated taekwondo combat and on post-exercise parasympathetic reactivation. Methods: Ten taekwondo athletes completed two experimental sessions separated by at least 48 hours. Athletes consumed a capsule containing either caffeine (5 mg∙kg-1) or placebo (cellulose) one hour before the combat simulation (3 rounds of 2 min separated by 1 min passive recovery), in a double-blind, randomized, repeated-measures crossover design. All simulated combat was filmed to quantify the time spent fighting in each round. Lactate concentration and rating of perceived exertion were measured before and after each round, while heart rate (HR) and the estimated contribution of the oxidative (WAER), ATP-PCr (WPCR), and glycolytic (W[La-]) systems were calculated during the combat simulation. Furthermore, parasympathetic reactivation after the combat simulation was evaluated through 1) taking absolute difference between the final HR observed at the end of third round and the HR recorded 60-s after (HRR60s), 2) taking the time constant of HR decay obtained by fitting the 6-min post-exercise HRR into a first-order exponential decay curve (HRRτ), or by 3) analyzing the first 30-s via logarithmic regression analysis (T30). Results: Caffeine ingestion increased estimated glycolytic energy contribution in relation to placebo (12.5 ± 1.7 kJ and 8.9 ± 1.2 kJ, P = 0.04). However, caffeine did not improve performance as measured by attack number (CAF: 26. 7 ± 1.9; PLA: 27.3 ± 2.1, P = 0.48) or attack time (CAF: 33.8 ± 1.9 s; PLA: 36.6 ± 4.5 s, P = 0.58). Similarly, RPE (CAF: 11.7 ± 0.4 a.u.; PLA: 11.5 ± 0.3 a.u., P = 0.62), HR (CAF: 170 ± 3.5 bpm; PLA: 174.2 bpm, P = 0.12), oxidative (CAF: 109.3 ± 4.5 kJ; PLA: 107.9 kJ, P = 0.61) and ATP-PCr energy contributions (CAF: 45.3 ± 3.4 kJ; PLA: 46.8 ± 3.6 kJ, P = 0.72) during the combat simulation were unaffected. Furthermore, T30 (CAF: 869.1 ± 323.2 s; PLA: 735.5 ± 232.2 s, P = 0.58), HRR60s (CAF: 34 ± 8 bpm; PLA: 38 ± 9 bpm, P = 0.44), HRRτ (CAF: 182.9 ± 40.5 s, PLA: 160.3 ± 62.2 s, P = 0.23) and HRRamp (CAF: 70.2 ± 17.4 bpm; PLA: 79.2 ± 17.4 bpm, P = 0.16) were not affected by caffeine ingestion. Conclusions: Caffeine ingestion increased the estimated glycolytic contribution during taekwondo combat simulation, but this did not result in any changes in performance, perceived exertion or parasympathetic reactivation. [ABSTRACT FROM AUTHOR]

This systematic review with meta-analysis aimed to evaluate the effects of elastic band training (EBT) on body composition and physical performance in apparently healthy older people. A systematic literature search was conducted between October 2023 and May 2024 using the core collection of six generic databases: PubMed, ProQuest, EBSCOhost, CINAHL Complete, Scopus, and Web of Science. The PRISMA, TESTEX, RoB 2, and GRADE tools assessed the evidence's methodological quality and certainty. The protocol was registered in PROSPERO (code: CRD42024547050). Of 5916 records, 9 randomized and non-randomized controlled trials involving 477 healthy older people were included. Six meta-analyses were performed showing significant improvements in 30-second chair stand (SMD = 3.03; 95 % CI = 0.14 to 5.93; I2 = 100 %; p = 0.04), sit-and-reach (SMD = 2.09; 95 % CI = 0.15 to 4.03; I2 = 100 %; p = 0.04) and timed up-and-go (SMD = 3.10; 95 % CI = 1.67 to 4.53; I2 = 98 %; p < 0.0001) tests. However, in maximal isometric handgrip strength, back-scratch test, and fat-free mass, no significant improvements (p > 0.05) in favor of EBT were reported. EBT improves 30-second chair stand, sit-and-reach, and timed up-and-go in older people. Nevertheless, the certainty of evidence is very low; thus, not definitive recommendations can be made. • EBT significantly improved 30-second chair stand, TUG, and sit-and-reach tests. • EBT not significant improvements in fat-free mass. • The certainty of evidence is very low; thus, not definitive recommendations can be made. • However, recommended to use EBT with a frequency of 2 or 3 weekly sessions of 50 to 80 min on alternate days. [ABSTRACT FROM AUTHOR]

Simple Summary: The benefits of regular physical activity on various health variables in older people have been extensively reported in scientific evidence. Resistance training, multi-component training, and walking exercise are the most commonly used physical activity interventions in older people, while interventions with adapted taekwondo are less common but have similar results to the strategies mentioned above. As a result, this study protocol aims to analyze and compare the effects of an adapted taekwondo program with respect to multi-component training and walking exercise on health status in independent older women. Secondarily, we analyze the variability of the inter-individual response and compare it according to the designated training system. According to the current scientific evidence we expect that adapted taekwondo will produce more significant effects and greater inter-individual responses in cognitive status, brain activity, health-related quality of life, and postural balance than the other training methods. If this intervention proves effective, it could be an alternative for older women. This study protocol aims to analyze and compare the effects of an adapted taekwondo program with respect to multi-component training and walking exercise on health status in independent older women. Secondarily, we analyze the variability of the inter-individual response and compare it according to the designated training system. The sample will consist of 64 women between 60 and 65 years, randomly assigned to experimental group 1 (n = 16; adapted taekwondo), experimental group 2 (n = 16; multi-component training), experimental group 3 (n = 16, walking exercise) or control group (n = 16; no intervention). The experimental groups will perform the designated training for three sessions (60 min per session) per week over 16-weeks, while the control group will not receive any treatment. The main outcome will provide information about (i) blood pressure, (ii) lipid profile, (iii) frequency of food consumption, (iv) body composition, (v) cognitive status, (vi) brain activity, (vii) health-related quality of life (HRQoL) and (viii) physical-functional fitness. Our hypothesis indicates that adapted taekwondo produces more significant effects and greater inter-individual responses in cognitive status, brain activity, HRQoL, and postural balance than the others training methods. If this intervention proves effective, it could be an alternative for older women. [ABSTRACT FROM AUTHOR]

Introduction: Background: we aimed to investigate the isolated effect of tele-exercises (TE) and their combined effect with nutritional coaching (NC) on health-related parameters of overweight and obese individuals. Methods: forty-one overweight (body mass index ≥ 25 kg/m2) and obese (body mass index ≥ 30 kg/m2) women were randomly assigned to the experimental groups: TE (n = 20) or TE+NC (n = 21). TE was applied 3 days/week in both groups, while TE+NC also received NC 1 day/week. Anthropometric, body composition, and exercise capacity-related outcomes, quality of life, and eating behavior were assessed before and after 8 weeks of the intervention. Results: a significant main time effect (p < 0.01) was detected for flexibility, isometric muscle strength and dynamic muscle endurance, but no main group effect was noted (p > 0.05). On the other hand, neither a significant main time nor group effect (p > 0.05) was detected in the anthropometric and body composition measures, quality of life, or eating behavior. Similarly, no significant between-group difference was observed in the absolute or relative change analysis (all comparisons, p > 0.05). Conclusions: an 8-week TE program enhanced exercise capacity, but did not impact anthropometric or body composition-related outcomes. The combination of NC+TE did not have a clinical advantage in the management of overweight and obesity. [ABSTRACT FROM AUTHOR]

Introduction: Resting metabolic rate (RMR) is a widely used method to determine an individual's nutritional need. There are different methods of obtaining the RMR values to identify these needs. Objective: This study aimed to compare the RMR values using two different indirect calorimetry (IC) devices, bioelectrical impedance analysis (BIA), and two predictive equations in a sample of male university students. Methods: This cross-sectional study analyzed 65 male university students (aged 23.3 ± 2.8 years, body mass index 25.78 ± 3.98 kg/m2). RMR was obtained using two IC devices (VO2000® and Fitmate PRO®) and BIA (InBody 570®), and two predictive equations by Harris and Benedict (Proc Natl Acad Sci 4:370–373, 1918) and FAO/WHO/UNU (Food Agric Organ 1:103, 2001). Results: The Bland–Altman (B&A) plot demonstrated considerable differences between the two gold standard methods, VO2000® and Fitmate PRO®, and BIA, with a mean difference of 7.8 and 5.7%, respectively. The B&A plot presented the lowest difference between the two IC devices with a mean difference of 2.1%. The B&A plot also showed a low difference between the two IC devices and predictive equations, with values ranging from −1.3 to −3.6%. In turn, the B&A plot between BIA and the predictive equations comprised approximately − 9.2% of the mean difference. The analysis of variance (ANOVA) demonstrated no significant differences between the measurements (p > 0.05). Conclusion: Based on the results, InBody 570® underestimates the reference values for RMR in two different IC devices as well as in the predictive equations. Although no significant differences were observed between ANOVA comparisons, the RMR values obtained using BIA should be analyzed with caution. The absence of sophisticated devices for RMR analysis indicates the need to use the FAO/WHO/UNU (Food Agric Organ 1:103, 2001) equation, which presented a lower difference compared with that of the gold standard measurements in male university students. [ABSTRACT FROM AUTHOR]

Introduction: Objective: the objective of the present study was to analyze the relationship between vigorous physical activity and body composition in older people who attend primary care centers. Material and methods: this study is characterized by being a descriptive, cross-sectional epidemiological study in 654 older adults (288 men and 366 women), most of them between 60 and 69 years of age (59 %), attending primary care centers in the city of Maringá, Brazil. The participants were evaluated using the International Physical Activity Questionnaire (IPAQ), anthropometric measurements, and a sociodemographic questionnaire to characterize the sample. Results: older adults who practice physical activities in primary care centers with vigorous intensity are associated with lower abdominal circumference, waist, hip, quadriceps, and calf measurements when compared to older people with low or moderate levels of physical activity. Conclusions: the practice of vigorous physical activity is related to low body perimeters (abdominal, hip, waist, calf) in older adults who attend primary care centers. [ABSTRACT FROM AUTHOR]

Simple Summary: The regular practice of physical activity has achieved greater diffusion in recent years as a strategy for fall prevention and improving or maintaining the general health status of older adults, which contributes to an active and healthy lifestyle. The strategies to promote active and healthy aging need to be reassessed due to the COVID-19 pandemic to promote the safe practice of physical activity among older adults, considering, among other measures, practicing social distancing or training at home. Such a scenario could provide the opportunity to promote physical activity that requires a limited number of participants in reduced spaces for its practice, such as Olympic combat sports. In this review, an overview of the effects of Olympic combat sports on balance, fall risk, or falls in older adults is presented. From 1496 records, eight studies were included, involving 322 older adults (64% female; mean age = 71.1 years). The available evidence does not allow a definitive recommendation for or against Olympic combat sports interventions as an effective strategy to improve balance and reduce the fall risk or falls in older adults. Therefore, more high-quality studies are required to draw definitive conclusions. This systematic review and meta-analysis aimed to assess the available body of published peer-reviewed articles related to the effects of Olympic combat sports (OCS), compared with active/passive controls, on balance, fall risk, or falls in older adults. The TESTEX and GRADE scales assessed the methodological quality and certainty of the evidence. The protocol was registered in PROSPERO (code: CRD42020204034). From 1496 records, eight studies were included, involving 322 older adults (64% female; mean age = 71.1 years). The TESTEX scale revealed all studies with a score ≥ 60% (moderate-high quality). The GRADE scale indicated all studies with at least some concerns, up to a high risk of bias (i.e., was rated very low). Meta-analyses were planned, although the reduced number of studies precluded its incorporation in the final manuscript. Only two from six studies that assessed balance found improvements after OCS compared to controls. No differences were found between OCS vs. control groups for fall risk or falls. The available evidence does not allow a definitive recommendation for or against OCS interventions as an effective strategy to improve balance and reduce the fall risk or falls in older adults. Therefore, more high-quality studies are required to draw definitive conclusions. [ABSTRACT FROM AUTHOR]