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Fatigue manifests as a decline in performance during high-intensity and prolonged exercise. With technological advancements and the increasing adoption of inertial measurement units (IMUs) in sports biomechanics, there is an opportunity to enhance our understanding of running-related fatigue beyond controlled laboratory environments. How have IMUs have been used to assess running biomechanics under fatiguing conditions? Following the PRISMA-ScR guidelines, our literature search covered six databases without date restrictions until September 2024. The Population, Concept, and Context criteria were used: Population (distance runners ranging from novice to competitive), Concept (fatigue induced by running a distance over 400 m), Context (assessment of fatigue using accelerometer, gyroscope, and/or magnetometer wearable devices). Biomechanical outcomes were extracted and synthesised, and interpreted in the context of three main study characteristics (cohort ability, testing environment, and the inclusion of physiological outcomes) to explore their potential role in influencing outcomes. A total of 88 articles were included in the review. There was a high prevalence of treadmill-based studies (n=46, 52%), utilising only 1-2 sensors (n=69, 78%), and cohorts ranged in experience, from sedentary to elite-level runners, and were largely comprised of males (69% of all participants). The majority of biomechanical outcomes assessed showed varying responses to fatigue across studies, likely attributable to individual variability, exercise intensity, and differences in fatigue protocol settings and prescriptions. Spatiotemporal outcomes such as stride time and frequency (n=37, 42 %) and impact accelerations (n=55, 62%) were more widely assessed, with a fatigue response that appeared population and environment specific. There was notable heterogeneity in the IMU-based biomechanical outcomes and methods evaluated in this review. The review findings emphasise the need for standardisation of IMU-based outcomes and fatigue protocols to promote interpretable metrics and facilitate inter-study comparisons. • Studies on running fatigue often focus on male cohorts with few sensors and outcomes. • Fatigue responses vary by individual, environment, and exercise intensity. • Standardized assessment and integrating physiological data could enhance analysis. [ABSTRACT FROM AUTHOR]

Purpose: Tryptophan (TRP) degradation through the kynurenine pathway is responsible for converting 95% of free TRP into kynurenines, which modulate skeletal muscle bioenergetics, immune and central nervous system activity. Therefore, changes in the kynurenines during exercise have been widely studied but not in the context of the effects of remote ischemic preconditioning (RIPC). In this study, we analyzed the effect of 14-day RIPC training on kynurenines and TRP in runners after running intervals of 20 × 400 m. Methods: In this study, 27 semi-professional long-distance runners were assigned to two groups: a RIPC group performing 14 days of RIPC training (n = 12), and a placebo group, SHAM (n = 15). Blood was collected for analysis before, immediately after, and at 6 h and 24 h after the run. Results: After the 14-day RIPC/SHAM intervention, post hoc analysis showed a significantly lower concentration of XANA and kynurenic acid to kynurenine ratio (KYNA/KYN) in the RIPC group than in the SHAM group immediately after the running test. Conversely, the decrease in serum TRP levels was higher in the RIPC population. Conclusion: RIPC modulates post-exercise changes in XANA and TRP levels, which can affect brain health, yet further research is needed. [ABSTRACT FROM AUTHOR]

Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background/Objectives: Monocarboxylate transporters (MCTs) comprise 14 known isoforms, with MCT1 being particularly important for lactate transport. Variations in lactate metabolism capacity and aerobic performance are associated with the T1470A polymorphism in MCT1. We aimed to investigate the frequency of the T1470A polymorphism and compare relevant physiological parameters among long-distance runners, wherein these parameters are fundamental to athletic performance. Methods: We included 158 Japanese long-distance runners (LD) and 649 individuals from the general Japanese population (CON). The frequency of the T1470A polymorphism was compared between these groups and across athletic levels using the chi-square test. Additionally, physiological data were collected from 57 long-distance runners, and respiratory gas measurements were obtained using the mixing-chamber method during a graded incremental exercise test. Results: We observed a significant difference between the LD and CON groups in the dominant model and between the sub-28 min group and 28 min or above group in the recessive model. As the competitive level increased, the frequency of the AA genotype also increased. When comparing physiological parameters between the AA genotype and T allele, subjects with the AA genotype showed significantly higher values for oxygen uptake at lactate threshold (p = 0.001), oxygen uptake at onset of blood lactate accumulation (p = 0.01), maximal oxygen uptake (p = 0.005), and maximal blood lactate concentration (p = 0.038). Conclusions: These results suggest that the AA genotype of the T1470A polymorphism of MCT1 is an effective genotype associated with athletic status and aerobic capacity in Japanese long-distance runners. [ABSTRACT FROM AUTHOR]

Foot posture is one of the risk factors that is thought to play a role in the occurrence of running-related injuries. This research aims to see if there is an association between foot posture and running-related injuries in longdistance recreational runners. Methods A cross-sectional research was conducted on 131 recreational longdistance runners (94 men and 42 women). Foot posture was determined by Arch Index values calculated from static and dynamic footprints, then tested whether it was associated with running-related injuries. The results showed that dynamic and static foot posture were not associated with running-related injuries in recreational long-distance runners (OR=0.67(0.21-2.20), 95% CI, p=0.516), (OR=0.87(0.29-2.61), 95% CI, p=0.806). On dynamic examination, low arch and high arch foot postures were not associated with running-related injuries in recreational long distance runners (OR=0.67(0.21-2.19), 95% CI, p=0.508), (OR=0.86(0.07-10.67), 95% CI, p=1.00). Most subjects had low arch foot posture on dynamic (83.8%) and static (82.4%) examination. Runningrelated injuries were found to be 28.7%, with most injuries in the knee (19.5%), calf (17.9%), and sole (15.6%) areas. The conclusions and suggestions in this research are that dynamic and static foot posture are not associated with running-related injuries in long-distance recreational runners, so further prospective research needs to be done to get a clearer picture of other risk factors that cause running-related injuries. [ABSTRACT FROM AUTHOR]

This exploratory study examines the relationship between the eccentric utilization ratio (EUR) and the rate of force development (RFD) in squat jumps (SJ). EUR, a key metric in sports science, compares performance in countermovement jumps (CMJ) and squat jumps (SJ). The study hypothesizes that a higher EUR is associated with a poorer RFD in SJ. Basketball and soccer players, long-distance runners, alongside physical education students (209 men; age: 23.2 ± 4.95 years and 104 women; age: 22.7 ± 4.42 years) participated. The EUR was calculated from jump height, peak force and peak power. The results indicated a small to moderate but significant negative correlation between EUR based on peak force or peak power and RFD in SJ (r = –.41 and −.27), suggesting that a higher EUR might be linked to a diminished ability to rapidly develop force in SJ. Thus, a higher EUR may not indicate superior athletic performance. [ABSTRACT FROM AUTHOR]

Long-distance runners are known to be at a high risk of lower limb disorders due to a decline in the function of the intrinsic foot muscles (IFMs). The aim of this study was to examine the effects of toe tube training using elastic tubes. First, a crossover study was conducted with 13 healthy adults in three conditions: tube training, short foot exercise, and control. Changes in the IFMs pre- and post-exercise were confirmed using ultrasound echo. Next, 19 university long-distance runners were randomly divided into two groups (tube training or short foot exercise) and underwent a five-week training intervention. The toe grip strength, toe gap strength, and reactive strength index were measured pre- and post-intervention. In a crossover study, the tube training and short foot exercise showed a significant interaction effect on the abductor hallucis brevis (F = 5.63, p = 0.010, partial η2 = 0.32) and flexor digitorum brevis (F = 15.29, p < 0.001, partial η2 = 0.56), confirming an immediate effect of tube training and short foot exercise. In an intervention study with runners, no interaction was observed but a main effect of time was found, with both groups showing significant improvements in toe grip strength (F = 25.64, p < 0.001, partial η2 = 0.60), toe gap strength (F = 11.26, p = 0.004, partial η2 = 0.40), and RSI (F = 4.81, p = 0.042, partial η2 = 0.22). Tube training may be an effective alternative for runners who find short foot exercise difficult and want to adjust the exercise load. [ABSTRACT FROM AUTHOR]

This study aimed to investigate the effects of high-intensity running on the autonomic nervous system and sleep quality of male long-distance runners and to examine the impact of wearing magnetic garments on these parameters. Fifteen highly trained male collegiate long-distance runners participated in a randomized, double-blind crossover study. Participants completed two 30 km runs (30k-RUN) during a 10-day training camp. After each run, they wore either magnetic (MAG) or non-magnetic control (CTRL) garments. Sleep quality and heart rate variability (HRV) were assessed using a wrist-worn device before and after each 30k-RUN. Wearing MAG garments post-30k-RUN resulted in significantly longer deep sleep duration compared to CTRL. HRV analysis revealed that the MAG condition led to a significantly higher root mean square of successive RR interval differences and high-frequency power, indicating enhanced parasympathetic activity. The low-frequency to high-frequency ratio was significantly lower in MAG than in CTRL. Perceived recovery scores were significantly higher in MAG than in CTRL. The findings of this study suggest that wearing magnetic garments following high-intensity endurance running may promote parasympathetic dominance and improve sleep quality in male long-distance runners. These findings indicate that magnetic garments may be a practical method for enhancing recovery in athletes following intense training. [ABSTRACT FROM AUTHOR]

Background: miRNAs are short, non-coding RNAs whose deregulation has been shown in painful processes, including musculoskeletal pain. This condition, which causes disability, impacts quality of life, and contributes to substantial healthcare costs, is also a critical issue in sports. In this case-control study, we evaluated the expression of four miRNAs involved in inflammation in runners with musculoskeletal pain and elucidated their functions and pathophysiological implications. Methods: A total of 17 runners with musculoskeletal pain and 17 age- and sex-matched runners without pain participated in this study. The levels of the miRNAs were evaluated by qRT-PCR. Bioinformatic tools were employed to identify the target genes and biological processes regulated by these miRNAs. Results: Compared to the controls, the runners with musculoskeletal pain exhibited significantly higher plasma levels of miR-133b (p = 0.02), miR-155-5p (p = 0.003) and let-7a-5p (p = 0.02). Multivariable regression analysis indicated that these three miRNAs exhibit a positive correlation (p < 0.05) with the presence of musculoskeletal pain, adjusted for age. Bioinformatic analysis suggested that the miRNAs hub genes are involved in regulatory processes, neuroinflammatory pathways, and human diseases that are associated with pain pathology. Conclusions: These results enhance our understanding of the potential role of miR-133b, miR-155-5p and let-7a-5p in pain-associated biological processes. The miRNA-mediated negative regulation of genes identified could explain the inflammatory and tissue repair processes in this population. Further studies are needed to confirm and validate the role of these miRNAs in painful conditions, especially considering the significant public health implications of managing inflammatory pain in sports. [ABSTRACT FROM AUTHOR]

This research aimed to investigate morphological parameters (body mass, height, BMI) of medallists at the World Masters Orienteering Championships (WMOC), alongside their sports achievements and results. Fifty medallists from the 2022 WMOC, aged 35 to 80, were surveyed using a questionnaire, with non-parametric statistics (Mann–Whitney U test and ρ-Spearman test) applied for analysis. The average height was 179 cm for men and 165 cm for women, with average weights of 70 kg for men and 54 kg for women. BMI was 21.5 (SD = 1.43) for men and 20.4 (SD = 1.74) for women, with significantly lower BMI values in women (Z = 2.054, p = 0.04). Men's BMI decreased with age (R = −0.534, p < 0.01). The BMI value of masters foot orienteers is typical for middle-distance runners. Women are closer to the somatotype of 1500 m athletes and men to 800 m athletes. Lack of earlier elite success does not preclude being on the podium at the WMOC (only 3 of the 50 medallists surveyed had won a medal in elite competition in the past). [ABSTRACT FROM AUTHOR]

Endurance performance declines with advancing age. Of the three main physiological factors that determine endurance running performance [maximal oxygen consumption (V̇ o 2max), lactate threshold, and running economy (RE)], V̇ o 2max appears to be most affected by age. Although endurance performance declines with age, recently, endurance performance has rapidly improved in master athletes as the number of master athletes competing in endurance events has increased. Master athletes represent an intriguing model to study healthy aging. In this case study, we reassessed the physiological profile of a 76-yr-old distance runner who broke the marathon world record for men over 70 yr of age in 2018. This runner was tested a few months before breaking the world record and retested in 2024. Between 2018 and 2024, his marathon running velocity decreased significantly. Therefore, the purpose of this case study was to determine the physiological changes that explain his performance decline. RE remained similar to 2018, and while there was not a clear breakpoint in blood lactate, he still likely runs marathons at a high percentage (∼90%) of his V̇ o 2max. However, V̇ o 2max declined by 15.1%. HRmax declined by 3.2% and maximal O2 pulse declined by 12.4%, suggesting that maximal stroke volume and/or arteriovenous O2 difference decreased. Altogether, although this marathoner continues to compete at an elite level, his performance has declined since his record-breaking marathon due to a reduction in V̇ o 2max. This is likely caused by reductions in maximal stroke volume and/or arteriovenous O2 difference. We speculate that these changes reflect primarily age-related processes. NEW & NOTEWORTHY: We performed 6-yr follow-up testing on a world record-breaking master marathon runner. We determined that his performance declined since his record-breaking marathon in 2018 primarily due to a reduction in V̇ o 2max. His max heart rate (HR) changed minimally, but his peak O2 pulse decreased, suggesting that his maximal stroke volume and/or arteriovenous O2 difference decreased. These changes likely reflect primarily age-related effects in the absence of an overt pathological disease process. [ABSTRACT FROM AUTHOR]

Summary Burgeoning interest in marathons necessitates an understanding of performance determinants. Research has highlighted the importance of diet, training and sleep, yet relations of circadian preference and sleep inertia with marathon performance remain largely unexplored. Because marathons generally start early‐to‐mid morning, these characteristics may have relevant impact. This study investigates relationships of circadian preference, sleep inertia and their interaction with marathon completion time. Consenting participants in a 2016 large mass‐participation city marathon completed self‐report questionnaires capturing circadian preference and sleep inertia, along with demographics and other characteristics. Circadian preference and sleep inertia were described across subgroups. Analyses examined the associations and interactions of circadian preference and sleep inertia with marathon completion times, with adjusted analyses accounting for age, sex and sleep health. Participants were marathon finishers (n = 936; 64.5% male; 66.3% young‐adults), with a majority reporting morningness tendencies (60.8%). Results supported a linear association between increasing eveningness preference with slower marathon times (p = 0.003; padjusted = 0.002), while some support was provided for a linear relationship between greater sleep inertia and slower marathon times (p = 0.04; padjusted = 0.07). A significant interaction was observed (p = 0.02; padjusted = 0.01), with the directionality suggesting that the circadian preference relationship weakened when sleep inertia severity increased, and vice‐versa. Our results suggest deleterious associations of increasing eveningness preference and greater sleep inertia with marathon completion time. These features may aid identifying marathoners who could be at a disadvantage, while also serving as modifiable targets for personalized training regimens preceding competition. [ABSTRACT FROM AUTHOR]

Background: The foot racing disciplines include sprints, middle distances, and long distances, which vary in terms of intensities, duration of training, and metabolic demands. The aim of our study was to evaluate the differences in morpho-functional parameters describing cardiac remodeling in a large cohort of Olympic athletes practicing the different track subspecialties. Methods: We evaluated 140 track and field (52.1% males, mean age 26.3 ± 4.3 years) Olympic athletes divided into four groups according to the distance performed: Group A (46, 32.9%): 100 and 200 mt; Group B (34, 24.3%): 400 mt; Group C (25, 17.9%): 800, 1500, and 3000 mt; Group D (35, 24.9%): 5000, 10,000 mt, and marathon distance. The athletes underwent a pre-participation screening, which included transthoracic echocardiography and exercise stress testing. Results: In Group A and in Group B, most athletes presented normal cardiac geometry (41/46, 89.1% in Group A and 31/34, 91.2% in Group B, p < 0.0001). Instead, in Groups C and D, more than half presented eccentric cardiac remodeling (13\25, 52% in Group C and 23\35, 65.7% in Group D). No significant differences were found between subspecialties in LVEF (p = 0.587), diastolic function (p = 0.431), and training hours/week (p = 0.078). Conclusions: In conclusion, the presence and extent of cardiac remodeling vary according to the distance of the discipline practiced, with the largest dimensional increase in both left and right ventricles and atria in mid- and long-distance runners and the lowest in sprinters. [ABSTRACT FROM AUTHOR]

Extensive research has delved into the impact of environmental circumstances on the pacing and performance of professional marathon runners. However, the effects of environmental conditions on the pacing strategies employed by marathon participants in general remain relatively unexplored. This study aimed to examine the potential associations between various environmental factors, encompassing temperature, barometric pressure, humidity, precipitation, sunshine, cloud cover, wind speed, and dew point, and the pacing behavior of men and women. The retrospective analysis involved a comprehensive dataset comprising records from a total of 668,509 runners (520,521 men and 147,988 women) who participated in the 'Berlin Marathon' events between the years 1999 and 2019. Through correlations, Ordinary Least Squares (OLS) regression, and machine learning (ML) methods, we investigated the relationships between adjusted average temperature values, barometric pressure, humidity, precipitation, sunshine, cloud cover, wind speed, and dew point, and their impact on race times and paces. This analysis was conducted across distinct performance groups, segmented by 30-minute intervals, for race durations between 2 hours and 30 minutes to 6 hours. The results revealed a noteworthy negative correlation between rising temperatures and declining humidity throughout the day and the running speed of marathon participants in the 'Berlin Marathon.' This effect was more pronounced among men than women. The average pace for the full race showed positive correlations with temperature and minutes of sunshine for both men and women. However, it is important to note that the predictive capacity of our model, utilizing weather variables as predictors, was limited, accounting for only 10% of the variance in race pace. The susceptibility to temperature and humidity fluctuations exhibited a discernible increase as the marathon progressed. While weather conditions exerted discernible influences on running speeds and outcomes, they did not emerge as significant predictors of pacing. [ABSTRACT FROM AUTHOR]

This article describes how energy, and the 'condition' of the runner, achieved through the successful management of energy, is understood as trans-bodily and social by Ethiopian long-distance runners. The way energy flows between people and the environment means it is deeply implicated in how people understand relational ethics. By describing both morally appropriate training sociality as well as instances of rupture, I argue that rather than seeing competitive pressure as driving atomisation, the notion of shared energy deepens athletes' reliance on others. By bringing together literature on energy with debates about ethics I argue that in conditions of scarcity energetic concerns become relational issues in ways that are particularly important to theorise in a moment characterised by the pressures of an economy constrained by ecological and energetic limits. The notion of 'energetic subjectivities' can help us make sense of these challenges from the perspectives of those caught up in them. [ABSTRACT FROM AUTHOR]

Cheating among those who participate in sports activities is by no means a new phenomenon. Deviance among sports groups has traditionally involved either noncompliance with the rules or the consumption of illicit, performance enhancing substances. Such acts of deviance grow increasingly troublesome and punishable when rewards, such as financial gain or personal accolades, come into play. This is often the case for those who engage in the sport of marathon running. Participation in marathons has continued to grow over the past decades, and as more people seek to partake in these challenging courses, more opportunities for cheating arise. Cheating in marathons is somewhat unique compared to other sports activities, and thus, it is important to gain a further understanding of how people may perform acts of deviance, how might such deviant actors attempt to minimize their blameworthiness using accounts in the form of excuses and justifications toward those who would seek to socially demonize them, and applying previously established sociological concepts to new deviant groups. [ABSTRACT FROM AUTHOR]

Hematopoietic stem cell (HSC) transplant is one of the curative methods for some patients with hematological malignancies. Granulocyte colony-stimulating factor (G-CSF) is the most common drug used to mobilize CD34+ cells, generally found in small numbers. Recent evidence showed that exercise causes transient mobilization in HSC. However, the type and intensity of exercise have not been fully revealed. We aimed to detect a significant increase in stem cell levels following 60 ​min of running at a personalized running pace. Eighteen runners, 48.2 ​± ​1.9 years with peak oxygen consumption of 46.2 ​± ​1.4 ​ml/kg/min, were enrolled in the study. The cardiopulmonary exercise test was performed to determine the individual running pace, and the participants ran 60-min on a treadmill at an intensity close to their ventilatory threshold (VT). The blood sampling for HSC count was performed before, immediately after, at the 1st, 4th and 24th hour after the 60-min running. The CD34+ HSCs were 13.9 ​± ​2.3 ​cells/μl before and significantly increased immediately after to 19.5 ​± ​3.6 ​cells/μl (p ​< ​0.05). The consecutive HSC counts were 15.3 ​± ​2.2, 19.5 ​± ​4.8 and 15.1 ​± ​3.4 ​cells/μl at the 1st, 4th, and 24th hour, respectively. The individual data showed that some runners had higher HSC levels than the transplantation limit before and after the 60-min running trail, which was maintained for 24 ​h. Pre-running high CD34+ HSCs may reflect an adaptive response to regular exercise, with a 60-min run near the VT further elevating HSCs. Individualized exercise may be a valuable tool to mobilize the CD34+ HSCs in peripheral blood for donors. [ABSTRACT FROM AUTHOR]

Strenuous running triggers the coordination of pro- and anti-inflammatory, as well as immunoregulatory cytokines, which are upregulated in response to inflammatory stimulus and thus considered a precursor to overuse injury. The aim of this study was to correlate injury risk to footwear stiffness normalized against each runner's weight, i.e. the midsole's ability to resist deformation in response to the applied force. Experienced runners participated in a 2h 15 ​min intensity-controlled run, averaging 85 ​% of their threshold heart rate. Venous blood, collected in the field prior to and immediately after the race, was subjected to multi-parameter flow cytometry, to monitor the plasma levels of interleukin (IL)-2, IL-6 and tumor necrosis factor alpha (TNF α ). Footwear stiffness was determined utilizing an automated drop test, recreating footfall pattern, impact speed and weight of each runner. Plasma level increase was analyzed for each cytokine, using one-way ANOVA and the data associated to footwear stiffness through the calculation of Pearson correlation coefficient. Only IL-6 levels exhibited a statistical significant increase pre-to post-race, corresponding to F (1,8) ​= ​24.0417 with a critical value of 4.4139. The increase in IL-6 levels was also found to produce a strong correlation to footwear stiffness, expressed in a Pearson coefficient of r (8) ​= ​0.79 ​at ρ ​= ​0.0063 (P ​< ​0.05). The significant increase in pro-inflammatory markers, such as IL-6 which are associated with injury, would suggest that runners using compliant footwear are at lower risk of overuse injury than the ones running on stiffer midsoles. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of the present study was to compare the acute effects of different rest period durations after general warm-up (GWU) and dynamic stretching (DS) on endurance running performance. Methods: Eight male runners performed endurance running performance tests after three types of intervention. The interventions were as follows: (1) GWU + 5 min Rest, (2) GWU + DS + 5 min Rest, and (3) GWU + DS + 10 min Rest. The GWU consisted of running exercises on a treadmill at a velocity equivalent to 70% of maximum oxygen uptake (V̇O2max) for 15 min. The DS consisted of performing 10 repetitions as quickly as possible for the five muscle groups of the lower extremities. Endurance running performance was measured by time to exhaustion (TTE) during running on the treadmill at a velocity equivalent to 90% V̇O2max. Results: TTE (884.5 ± 244.9 s) after GWU + DS + 10 min Rest intervention was significantly (p < 0.05) longer than that (719.8 ± 227.9 s) after GWU + 5 min Rest. TTE (734.5 ± 274.2 s) after GWU + DS + 5 min Rest intervention was not significantly different than that of the other two interventions. Conclusion: The results demonstrated that the endurance running performance at the velocity equivalent to 90% V̇O2max was enhanced by GWU + DS + 10 min Rest, but not GWU + DS + 5 min Rest. We recommend that runners rest for approximately 10 min after GWU + DS to enhance endurance running performance. [ABSTRACT FROM AUTHOR]

This study was conducted in 2019 to evaluate the effects of endurance training, especially on long-distance runners, on the endurance of these athletes. Experimental and control groups were formed in the study and the characteristics of these groups are as follows. The age range of the athletes in the group participating in the experiment was 18-22 and their number was 40 in total. The athletes in the study group were divided into 20 experimental and 20 control groups. Before and at the end of the training period, 30m sprint, Cooper test and subcutaneous fat measurements in three areas performed. And the control group was given free exercise for one day for one hour for 12 weeks. The training period was set as ‘’4 days in the first two weeks and 3 days in the other weeks’’ for 12 weeks and the experimental group was motivated for willingness before the each studies. In the evaluation, a significant difference was found in developmentally aerobic power, 12min Cooper running, between the control and experimental groups (P<0.01). When we evaluated the experimental and control groups in terms of sprint test, the difference in development between them was found to be significant (P <0.01). The difference between the experimental group and the control group in body fat percentage was statistically significant (P<0.05). [ABSTRACT FROM AUTHOR]

The study's objective was to identify the features of internal movement structure that depend on speed and the importance of unloading when jogging on an anti-gravity treadmill. The aim was to investigate whether the internal structure of running changes under unloaded conditions, using an anti-gravity treadmill. Twenty male competitive middle- and long-distance runners with the following characteristics participated in the study: age, 25 ± 5 years; body weight, 67.2 ± 8.9 kg; body height, 177 ± 11 cm; and training experience, 9 ± 5 years. The gastrocnemius (GC), tibialis anterior (T), quadriceps femoris (Q), biceps femoris (B), and gluteus (G) were the five lower limb muscles whose muscle activity was evaluated. Surface electromyography (sEMG) was used to measure muscle activation while jogging and running on the AlterG Anti-Gravity Treadmill. The study method involved capturing the examined muscular activity at four different speeds: 6, 10, 14, and 18 km/h. At each of these speeds, four two-minute measurements were taken with varying body weight relief: 100%, 75%, 50%, and 25% of body weight. Repeated measures multivariate analysis of variance (RM-MANOVA) [F = 3.4663 p = 0.0001] showed that as running speed increases, the muscular activity of each muscle, expressed as a percentage of maximum muscle tension (%MVIC), decreases significantly. Results indicate that running pace affects the dynamics of the reduction in muscle activity in every examined muscle. As one runs faster, the decline in dynamics becomes more intense. At the slowest jogging pace (6 km/h), the variations were almost negligible (±4 percentage points between 25% and 100% body weight relief) as unloading increased. However, the discrepancies reached up to 14 percentage points at the fastest running speed (18 km/h). In every muscle studied, distinctive patterns and significant dynamics at high speeds were observed. The study's findings suggest that using an anti-gravity treadmill for training can be beneficial, yet it is important to consider the significant relationships between speed and relief, as these variables could impact maintaining a proper movement pattern and running style. This knowledge may be useful when choosing the right training regimens and loads for runners recovering from injuries. [ABSTRACT FROM AUTHOR]

Aging is associated with decreased muscle strength and power. Power is particularly important for maintaining the independence of older adults when performing activities of daily living. The countermovement jump has been identified as a reliable and safe method to assess lower extremity power across the lifespan. The purpose of this investigation was to study sex differences and age-related changes in countermovement jump peak power among masters weightlifters with the secondary purpose of comparing results to previous reports of community and masters athletes. Female (n = 63, 39 to 70 yrs, med (56 yrs)) and male (n = 39, 35 to 86 yrs, med (59 yrs)) participants of the 2022 World Masters Championships completed three maximal effort countermovement jump repetitions following a dynamic warm-up. Vertical ground reaction forces were recorded, and peak power normalized to body mass was calculated. Results indicated significant age-related peak power among weightlifters, with the decline being significantly more pronounced in males than females. Female weightlifters exhibited less age-related decline compared to normative data as well as the other Master athlete comparison cohorts (short and long-distance runners), whereas the males demonstrated similar age-related declines as the comparison cohorts. While the female weightlifters in the current study generally demonstrated the least age-related declines in CMJ peak power of the comparative literature, the male weightlifters showed similar age-related decline rates. [ABSTRACT FROM AUTHOR]

The pacing of a marathon is arguably the most challenging aspect for runners, particularly in avoiding a sudden decline in speed, or what is colloquially termed a "wall", occurring at approximately the 30 km mark. To gain further insight into the potential for optimizing self-paced marathon performance through the coding of comprehensive physiological data, this study investigates the complex physiological responses and pacing strategies during a marathon, with a focus on the application of Shannon entropy and principal component analysis (PCA) to quantify the variability and unpredictability of key cardiorespiratory measures. Nine recreational marathon runners were monitored throughout the marathon race, with continuous measurements of oxygen uptake ( V ˙ O2), carbon dioxide output ( V ˙ CO2), tidal volume (Vt), heart rate, respiratory frequency (Rf), and running speed. The PCA revealed that the entropy variance of V ˙ O2, V ˙ CO2, and Vt were captured along the F1 axis, while cadence and heart rate variances were primarily captured along the F2 axis. Notably, when distance and physiological responses were projected simultaneously on the PCA correlation circle, the first 26 km of the race were positioned on the same side of the F1 axis as the metabolic responses, whereas the final kilometers were distributed on the opposite side, indicating a shift in physiological state as fatigue set in. The separation of heart rate and cadence entropy variances from the metabolic parameters suggests that these responses are independent of distance, contrasting with the linear increase in heart rate and decrease in cadence typically observed. Additionally, Agglomerative Hierarchical Clustering further categorized runners' physiological responses, revealing distinct clusters of entropy profiles. The analysis identified two to four classes of responses, representing different phases of the marathon for individual runners, with some clusters clearly distinguishing the beginning, middle, and end of the race. This variability emphasizes the personalized nature of physiological responses and pacing strategies, reinforcing the need for individualized approaches. These findings offer practical applications for optimizing pacing strategies, suggesting that real-time monitoring of entropy could enhance marathon performance by providing insights into a runner's physiological state and helping to prevent the onset of hitting the wall. [ABSTRACT FROM AUTHOR]

In a 77-year-old former world-record-holding male marathoner (2:08:33.6), this study sought to investigate the impact of lifelong intensive endurance exercise on cardiac structure, function, and the trajectory of functional capacity (determined by maximal oxygen consumption, V̇ o 2max) throughout the adult lifespan. As a competitive runner, our athlete (DC) reported performing up to 150–300 miles/wk of moderate-to-vigorous exercise and sustained 10–15 h/wk of endurance exercise after retirement from competition. DC underwent maximal cardiopulmonary exercise testing in 1970 (aged 27 yr), 1991 (aged 49 yr), and 2020 (aged 77 yr) to determine V̇ o 2max. At his evaluation in 2020, DC also underwent comprehensive cardiac assessments including resting echocardiography, and resting and exercise cardiac magnetic resonance to quantify cardiac structure and function at rest and during peak supine exercise. DC's V̇ o 2max showed minimal change from 27 yr (69.7 mL/kg/min) to 49 yr (68.1 mL/kg/min), although it eventually declined by 36% by the age of 77 yr (43.6 mL/kg/min). DC's V̇ o 2max at 77 yr, was equivalent to the 50th percentile for healthy 20- to 29-yr-old males and 2.4 times the requirement for maintaining functional independence. This was partly due to marked ventricular dilatation (left-ventricular end-diastolic volume: 273 mL), which facilitates a large peak supine exercise stroke volume (200 mL) and cardiac output (22.2 L/min). However, at the age of 78 yr, DC developed palpitations and fatigue and was found to be in atrial fibrillation requiring ablation procedures to revert his heart to sinus rhythm. Overall, this life study of a world champion marathon runner exemplifies the substantial benefits and potential side effects of many decades of intense endurance exercise. NEW & NOTEWORTHY: This life study of a 77-yr-old former world champion marathon runner exemplifies the impact of lifelong high-volume endurance exercise on functional capacity (V̇ o 2max equivalent to a 20- to 29-yr-old), partly due to extreme ventricular remodeling that facilitates a large cardiac output during exercise despite reduced maximal heart rate. Although it is possible that this extreme remodeling may contribute to developing atrial fibrillation, the net benefits of extreme exercise throughout this athlete's lifespan favor increased health span and expected longevity. [ABSTRACT FROM AUTHOR]

Objectives: To compare performance progression and variety in race distances of comparable lengths (timewise) between pool swimming and track running. Quality of within-sport variety was determined as the performance differences between individual athletes' main and secondary race distances across (top-) elite and (highly-) trained swimmers and runners. Methods: A total of 3,827,947 race times were used to calculate performance points (race times relative to the world record) for freestyle swimmers (n = 12,588 males and n = 7,561 females) and track runners (n = 9,230 males and n = 5,841 females). Athletes were ranked based on their personal best at peak performance age, then annual best times were retrospectively traced throughout adolescence. Results: Performance of world-class swimmers differentiates at an earlier age from their lower ranked peers (15-16 vs. 17-20 year age categories, P < 0.05), but also plateaus earlier towards senior age compared to runners (19-20 vs. 23 + year age category, P < 0.05), respectively. Performance development of swimmers shows a logarithmic pattern, while runners develop linearly. While swimmers compete in more secondary race distances (larger within-sport variety), runners specialize in either sprint, middle- or long-distance early in their career and compete in only 2, 4 or 3 other race distances, respectively. In both sports, sprinters specialize the most (P < 0.05). Distance-variety of middle-distance swimmers covers more longer rather than sprint race distances. Therefore, at peak performance age, (top-) elite female 200 m swimmers show significantly slower sprint performances, i.e., 50 m (P < 0.001) and 100 m (P < 0.001), but not long-distance performances, i.e., 800 m (P = 0.99) and 1,500 m (P = 0.99). In contrast, (top-) elite female 800 m middle-distance runners show significantly slower performances in all their secondary race distances (P < 0.001). (Top-) elite female athletes specialize more than (highly-) trained athletes in both sports (P < 0.05). Conclusions: The comparison to track running and lower ranked swimmers, the early performance plateau towards senior age, and the maintenance of a large within-sport distance variety indicates that (top-) elite sprint swimmers benefit from greater within-sport specialization. [ABSTRACT FROM AUTHOR]

This case study presents a 47-year-old male who was diagnosed with Gorham-Stout syndrome (GSS) 10 years ago in the occipitocervical junction. The pathology caused the resorption of the suboccipital bone, clivus, foramen magnum, and C1–C3 laminae. After his first fusion attempt in 2010 using occipital plate-cervical lateral mass screws, he needed many revision surgeries either for the progression of the pathology or for instrumentation failure and wound healing problems. Eventually, a new occipital plate and cervical pedicle screws were applied to obtain the exact solution. The involvement of the craniovertebral junction in GSS may be challenging for spinal surgeons due to the inadequate bone reserve for stabilization. As lateral mass screws cannot provide a strong pull-out force, cervical pedicular screws may be used as the first choice for unstable cervical GSS cases. [ABSTRACT FROM AUTHOR]

Purpose: We evaluated (1) whether participating in middle- and long-distance running races augments muscle soreness, oxygen cost, respiration, and exercise exertion during subsequent running, and (2) if post-race menthol application alleviates these responses in long-distance runners. Methods: Eleven long-distance runners completed a 1500-m race on day 1 and a 3000-m race on day 2. On day 3 (post-race day), either a 4% menthol solution (Post-race menthol) or a placebo solution (Post-race placebo) serving as a vehicle control, was applied to their lower leg skin, and their perceptual and physiological responses were evaluated. The identical assessment with the placebo solution was also conducted without race participation (No-race placebo). Results: The integrated muscle soreness index increased in the Post-race placebo compared to the No-race placebo (P < 0.001), but this response was absent in the Post-race menthol (P = 0.058). Oxygen uptake during treadmill running tended to be higher (4.3%) in the Post-race placebo vs. No-race placebo (P = 0.074). Oxygen uptake was 5.4% lower in the Post-race menthol compared to the Post-race placebo (P = 0.018). Minute ventilation during treadmill running was 6.7–7.6% higher in the Post-race placebo compared to No-race placebo, whereas it was 6.6–9.0% lower in the Post-race menthol vs. Post-race placebo (all P ≤ 0.001). The rate of perceived exertion was 7.0% lower in the Post-race menthol vs. Post-race placebo (P = 0.007). Conclusions: Middle- and long-distance races can subsequently elevate muscle soreness and induce respiratory and metabolic stress, but post-race menthol application to the lower legs can mitigate these responses and reduce exercise exertion in long-distance runners. [ABSTRACT FROM AUTHOR]

Maximal oxygen uptake (VO2max) is a determining indicator for cardiorespiratory capacity in endurance athletes, and epigenetics is crucial in its levels and variability. This initial study examined a broad plasma miRNA profile of twenty-three trained elite endurance athletes with similar training volumes but different VO2max in response to an acute maximal graded endurance test. Six were clustered as higher/lower levels based on their VO2max (75.4 ± 0.9 and 60.1 ± 5.0 mL.kg−1.min−1). Plasma was obtained from athletes before and after the test and 15 ng of total RNA was extracted and detected using an SYBR-based 1113 miRNA RT-qPCR panel. A total of 51 miRNAs were differentially expressed among group comparisons. Relative amounts of miRNA showed a clustering behavior among groups regarding distinct performance/time points. Significantly expressed miRNAs were used to perform functional bioinformatic analysis (DIANA tools). Fatty acid metabolism pathways were strongly targeted for the significantly different miRNAs in all performance groups and time points (p < 0.001). Although this pathway does not solely determine endurance performance, their significant contribution is certainly achieved through the involvement of miRNAs. A highly genetically dependent gold standard variable for performance evaluation in a homogeneous group of elite athletes allowed genetic/epigenetic aspects related to fatty acid pathways to emerge. [ABSTRACT FROM AUTHOR]

Anemia is a common condition in long-distance runners (LDRs). Recently, not only iron deficiency (ID) but also energy deficiency has been considered as a risk factor for anemia in athletes but no evidence has yet been established. The aim of this study was to investigate the prevalence of anemia and ID and the influence of body mass index (BMI) on anemia in high-school LDRs. The participants were 406 male and 235 female elite Japanese LDRs who competed in the All-Japan High-School Ekiden Championship 2019. They submitted their anthropometric data and results of a blood test within five days after the competition. The prevalence of anemia and ID and the influence of BMI on anemia were assessed retrospectively. Mean hemoglobin concentrations (Hb) were 14.8 ± 0.9 g/dl in males and 13.2 ± 0.9 g/dl in females. The prevalence of anemia (Hb < 14 g/dl in males and < 12 g/dl in females) was significantly higher in males (16.3%) than females (6.4%), but males also showed higher prevalence of non-iron deficiency anemia (NIDA) than females (11.6% and 3.0%, respectively). No significant gender difference was found in the prevalence of iron deficiency anemia (IDA) (4.7% in males and 3.4% in females). ID (serum ferritin level < 25 ng/ml) was significantly more prevalent in females (37.4%) than males (18.5%). A binary logistic regression analysis revealed that low BMI was a contributor to anemia in females (odds ratios: 0.577 (95% CI: 0.369–0.901), p = 0.012). In Japanese high-school LDRs, one in six males was anemic, but most males did not have ID. Conversely, one-third of females were diagnosed with ID. Lower BMI was identified as a risk for anemia in females, suggesting that leanness may also lead to anemia in females. [ABSTRACT FROM AUTHOR]

This study examines the association between club membership and marathon performance using a dataset of 206,653 London Marathon runners. Our results show a statistically significant association between club membership and marathon performance for both males and females which sees club membership potentially mitigating pace decline with age and resulting in substantial improvements in finishing times of up to 40 minutes. We implement a production function framework and align with three principles of economic organisation. The findings have relevance for marathon participants, coaches, and athletic associations as well as implications beyond athletics to other sports or cooperative activities. [ABSTRACT FROM AUTHOR]

The aim of this study was to compare the foot-ankle joint mechanics of running drills and running. Seventeen long-distance runners performed five popular running drills (A-skip, B-skip, Bounding, Heel flicks, Straight leg running) and a run at 3.88 m/s. Kinematics, kinetics and power values were calculated for the ankle, midtarsal (MT) and metatarsophalangeal (MP) joints. Electromyographic activity was recorded for the soleus, gastrocnemius medialis, lateralis and abductor hallucis muscle. The A-skip, the B-skip and the Heel flicks induced a smaller ankle (p < 0.001, ŋ2 = 0.41), MT (p < 0.001, ŋ2 = 0.43) and MP (p < 0.001, ŋ2 = 0.47) dorsiflexion peak than running. No difference was found between the running drills and running for ankle, MT and MP moment. The Bounding induces a higher positive ankle power than running (diff: 5.5 ± 7.5 J/kg, p = 0.014, d = 1.05). The A-skip (diff: 2.8 ± 2.9 J/kg, p < 0.001, d = 1.5) and the B-skip (diff: 2.7 ± 2.1 J/kg, p < 0.001, d = 1.4) induce a smaller MT positive power than running. This study offers an analysis of the mechanical behaviour of the foot-ankle complex to help track and field coaches select their running drills in an evidence-based manner. [ABSTRACT FROM AUTHOR]

The exercises of plantar foot muscles may have beneficial effects on the performance of the lower extremity muscles. The aim of this study was to compare two methods of foot muscle strengthening: direct short foot muscle exercises and indirect activation through training in minimalist footwear in regard to influence on lactate threshold velocity in long-distance runners. 55 recreational runners aged 21–45 years took part in that study. They were randomly divided into 2 groups: Group 1 (n = 25) with short foot muscle exercises, and Group 2 (n = 30) with training in minimalist shoes. The progressive running test was performed to determine heart rate (HR) and running velocity corresponding to lactate threshold (VLT). Two-way ANOVA was used to determine the significance of the differences regarding the evaluated variables. After the 8-week training program, higher values of VLT were observed in both groups. This change was significant only in Group 1 (p < 0.05). In Group 2, the higher value was noted but the changes were non-significant. Strengthening of the short foot muscles may improve lactate threshold velocity which is connected with running performance. Considering the obtained results, it is worth contemplating the implementation of these methods in the training of long-distance runners. [ABSTRACT FROM AUTHOR]

Purpose. This study explores lower limb joint displacement differences during the stance phase and to examine the effects of limb dominance on asymmetry. A total of 32 healthy male amateur marathon runners were recruited (age: 35.33 ± 6.90 years, height: 174.17 ± 3.34 cm, weight: 63.92 ± 4.53 kg). The experiment employed a Vicon eight‐camera motion capture system synchronized with an AMTI force plate to record the phase from heel strike to toe‐off. The continuous relative phase (CRP) between the dominant and nondominant limbs was assessed using of independent t‐test of SPM1d. Results. The hip–knee joint of the dominant limb had a larger maximum CRP (t = 1.104, p > 0.05, effect size = 0.270), smaller minimum CRP (t = −2.672, p < 0.05, effect size = 0.653), larger values of mean absolute relative phase (MARF) (t = 3.275, p < 0.05, effect size = 0.122), and deviation phase (DP) (t = 7.582, p < 0.001, effect size = 0.717) than that of the nondominant limb. Comparing the dominant limb of the knee–ankle joints with the nondominant, there are smaller maximum CRP (t = −0.422, p > 0.05, effect size = 0.144), smaller DP (t = −7.237, p < 0.001, effect size = 0.754), a larger minimum CRP (t = 7.909, p < 0.001, effect size = 2.704), and larger MARF (t = 0.355, p > 0.05, effect size = 0.801). Furthermore, during the stance phases, there are significant differences in coordination modes between the dominant limb and nondominant limb of intersegmental joints (p < 0.05). Conclusion. Throughout different phases of the stance phase, asymmetry in the sagittal plane of lower limb joint displacement is evident. The dominant limb undergoes significant changes in joint leading phase coordination modes, with notably less in‐phase coordination compared to the nondominant limb. This predisposes muscles to overstretching, thereby increasing the risk of muscle strains, while the nondominant limb compensates for lower muscle strength. Recognizing and addressing such asymmetries is key to optimizing nondominant limb strength and minimizing muscle overstretching in the dominant limb, leading to improved stability and movement efficiency during marathon running. Consequently, when designing exercise programs or physical therapy, it is crucial to consider limb dominance‐related symmetry differences to mitigate the risk of injury resulting from interlimb disparities in motion. [ABSTRACT FROM AUTHOR]

Introduction: COVID-19 was first reported in Wuhan, China, and subsequently spread worldwide. There were numerous restrictions on daily life activities, including lifestyles, social distancing, isolation and access to many forms of exercise and home confinement. All these activities have health benefits, as they enhance the immune system, which is the need of the hour during the COVID-19 pandemic. There is little data regarding the occurrence of COVID-19 among marathon runners, cyclists and yoga practitioners. The aim of the present study was to find the prevalence of COVID-19 among physically active and physically inactive individuals and to compare it among those groups. Material and methods: Physically active individuals were selected as per the Global Recommendations on Physical Activity for Health 2010, in the age group of 18-60 years, and included runners, yoga practitioners and cyclists from the Hyderabad club. A prevalidated questionnaire was circulated among the study groups through Google form. The data was analyzed statistically. Results: There was a high proportion of persons affected by COVID-19 in the physically inactive group (75.75%) when compared to the active group (17.17%). The percentages of subjects who tested positive for COVID-19 were as follows: 16.16% cyclists, 29.29% runners and 27.27% yoga practitioners among the physically active individuals, and 51.51% of physically inactive subjects. Conclusion: Physical activity acts as a barrier against COVID-19 infections and enhances the immune system. Therefore, it has to be prioritized by public health agencies and incorporated into routine medical care. [ABSTRACT FROM AUTHOR]

This paper briefly introduces plant extracts and their combinations with sports drinks. The research involved 40 sportsmen who are affiliated with the Track and Field Department of the School of Physical Education in South-Central Minzu University. This paper aimed to explore the influence of sports drinks enhanced with extracts of Codonopsis pilosula and Acanthopanax senticosus on the endurance levels of long-distance runners. The participants were divided into four groups: a placebo group, a group receiving only C. pilosula , a group receiving A. senticosus , and a composite group. Endurance performance indices for long-distance running were evaluated both before and after the training. Before training, the heart rate, blood lactate level, and maximum oxygen uptake of the placebo group were 159.53 ± 2.21 times/min, 9.7 ± 1.2 mmol/L, and 66.18 ± 2.35 mL/kg/min, respectively; the single Codonopsis pilosula group was 158.33 ± 2.24 times/min, 9.6 ± 1.1 mmol/L, and 65.87 ± 1.88 mL/kg/min, respectively; the single Acanthopanax senticosus group was 159.66 ± 3.67 times/min, 9.7 ±1.0 mmol/L, and 66.32 ± 1.47 mL/kg/min, respectively; the Codonopsis pilosulae and Acanthopanax senticosus composite group was 158.21 ± 1.28 times/min, 9.6 ± 0.9 mmol/L, and 66.87 ± 1.12 mL/kg/min, respectively. After training, the corresponding values of the placebo group were 162.53 ± 3.21 times/min, 9.6 ± 0.8 mmol/L, and 68.85 ± 3.25 mL/kg/min, respectively; the single Codonopsis pilosula group was 145.33 ± 2.25 times/min, 9.1 ± 0.5 mmol/L, and 73.69 ± 2.58 mL/kg/min, respectively; the single Acanthopanax senticosus group was 142.66 ± 3.69 times/min, 9.1 ± 0.8 mmol/L, and 73.84 ± 2.19 mL/kg/min, respectively; the composite group was 131.21 ± 1.36 times/min, 8.3 ± 0.3 mmol/L, and 77.19 ± 3.14 mL/kg/min, respectively. Sports drinks that include extracts of C. pilosula and A. senticosus significantly increased endurance levels. The concurrent use of C. pilosula and A. senticosus was more beneficial in enhancing endurance performance for long-distance running in comparison to using each extract individually. [ABSTRACT FROM AUTHOR]

This study aimed to determine whether there is a difference between the levels of imagery and mental toughness in the context of sports performance in male and female athletes. A total of 344 track and field athletes, 205 male (59.6%, 23.3 ± 4.0 years) and 139 female (40.4%, 22.9 ± 4.0 years), voluntarily participated in the study. Imagery Inventory and Mental Toughness Inventory in Sport were used as data collection tools in the study. In the evaluation of athletic performance, athletes were asked about their ranks in the years 2020, 2021, and 2022 and were categorized according to the scoring tables specified by the International Association of Athletics Federation. A MANOVA analysis was used to determine whether there was a difference between low (−2% to +5%), medium (+6 to +11%), and high (+12 to +17%) performers among male and female athletes, and a post hoc analysis was used to determine the source of the difference. According to the present findings, there was no significant difference between the imagery and mental toughness levels of athletes with high, medium, and low performance among male athletes. On the contrary, a significant difference was detected between the imagery and mental toughness levels of female athletes with medium and high performances, showing that athletes in the high-performance range had higher levels of imagery (Eta2 = 8) and mental toughness (Eta2 = 10) than athletes in the medium- and low-performance ranges. The findings of this study show that imagery and emotional intelligence are important factors for sports performance. In this context, coaches and sports psychologists can include these parameters in their training programs to achieve the optimal performance range. [ABSTRACT FROM AUTHOR]