Sport-specific Training Research Articles

The effects of sport-specific training on individuals action strategies while avoiding a virtual player approaching on a 45° angle while completing a secondary task.

Sports provide varying scenarios where athletes must interact with and avoid opposing players in dynamic environments. As such, sport-specific training can improve one's ability to integrate visual information which may result in improved collision avoidance behaviours. However, improved visuomotor capabilities are highly task dependent (i.e., athletes must be tested in sport-specific settings). The current study examined whether sport-specific training influenced individuals' collision avoidance behaviours during a sport-specific task in virtual reality. Untrained young adults (N = 21, 22.9±1.9 yrs, 11 males) and specifically trained athletes (N = 18, 20±1.5 yrs, 7 males) were immersed in a virtual environment and were instructed to walk along a 7.5m path towards a goal located along the midline. Two virtual players positioned 2.83m to the left and right of the midline approached participants on a 45° angle at one of three speeds: 0.8x, 1.0x, or 1.2x each participant's average walking speed. Participants were instructed to walk to a goal without colliding with the virtual players while performing a secondary task; reporting whether a shape changed above either of the virtual players' heads. Results revealed that athletes had a higher percentage of correct responses on the secondary task compared to untrained young adults. However, there was no group differences in the average time to first avoidance or average minimum clearance, but athletes were more variable in their avoidance behaviours. Findings from this study demonstrate that athletes may be more adaptive in their behaviours and may perform better on attentionally demanding tasks in dynamic environments.

Improvements in executive functions by domain-specific cognitive training in youth elite soccer players

This study examined the impact of sport-specific cognitive training (CT) on executive functions (EFs) in youth soccer players. Thirty-one athletes (13–15 years) participated, 13 in the intervention group (IG) and 18 in the control group (CG). The IG underwent an 8-week soccer-focused CT program, while the CG maintained regular training. The assessments included working memory, inhibition, and cognitive flexibility tasks. The results revealed no significant improvements in EFs in the IG compared to those in the CG. Both groups showed enhanced cognitive flexibility, possibly due to general cognitive development or learning effects. The study suggested that an 8-week sport-specific CT may not enhance EFs in young soccer players, potentially due to a ceiling effect in highly skilled athletes. These findings should be considered when designing cognitive training programs for athletes, and future research could explore the optimal duration of such programs.

Cardiac biomarkers alterations in rapid weight loss and high-intensity training in judo athletes: a crossover pilot study.

Studies evaluating alterations in cardiac biomarkers in rapid sport-associated weight loss (RWL) and high-intensity sport-specific training (HISST) are lacking. This pilot study aimed to examine the effects of RWL and HISST on heart rate, blood pressure, cardiac biomarkers, and left ventricular systolic function. Nine elite male judokas participated in the presented survey. The athletes underwent a baseline assessment and two testing protocols, the first phase with RWL where they had to lose 5% of their body weight simultaneously with HISST, and the second phase after 7 days, in which only HISST was performed. Participants underwent electrocardiogram, biomarker, and transthoracic echocardiogram evaluation after each phase. In the first phase (RWL and HISST) athletes, heart rate increased significantly, 58.11 (7.78) versus 79 (9.25), P=0.001; as well as cardiac biomarkers: lactate dehydrogenase isoenzyme 175.33 (31.22) vs. 238.56 (56), P=0.003; aspartate aminotransferase 16.56 (4.61) vs. 29 (9.96), P=0.027; creatine kinase isoenzyme-MB 13 (11.5;24) vs. 29.11 (10.05), P=0.004; and high sensitivity cardiac troponin 10 (0) vs. 14.49 (6.4), P=0.045. In the second phase, only HISST was associated with a significant increase in the alanine aminotransferase isoenzyme, 37.78 (11.22) vs. 26 (8.03), P=0.024, together with creatine kinase 472 (185;654) vs. 166.88 (56.57), P=0.01, compared to the initial measurement. RWL combined with HISST produced significant alterations in cardiac biomarkers without impairment of left ventricular systolic function.

Prioritise safety, optimise success! Return to rugby postpartum.

Pregnancy and childbirth involve substantial physical, physiological and psychological changes. As such, postpartum rugby players should be supported and appropriately prepared to return to the demands of rugby alongside the additional demands of motherhood. This review aims to discuss specific perinatal considerations that inform a rugby player's readiness to return-to-sport postpartum and present an approach to rehabilitation. Before engaging in full rugby training and matchplay, postpartum players should have progressed through the initial phases of rehabilitation and graded sports-specific training to prepare them for the loads they will be exposed to. Additional rehabilitation considerations include minimising deconditioning during pregnancy; medical concerns; the abdominal wall; the pelvic floor; perinatal breast changes, breastfeeding and risk of contact breast injury; body mass; nutritional requirements; hormonal considerations; athlete identity and psychological considerations; joining team training; return to contact and tackle training; evaluating player load tolerance and future research, policy and surveillance needs. A whole-systems, biopsychosocial approach following an evidence informed return-to-sport framework is recommended when rehabilitating postpartum rugby players. Health and exercise professionals are encouraged to use the perinatal-specific recommendations in this review to guide the development of postpartum rehabilitation protocols and resources.

Neural Mechanisms Associated With Postural Control in Collegiate Soccer and Non-Soccer Athletes.

Sport-specific training may improve postural control, while repetitive head acceleration events (RHAEs) may compromise it. Understanding the neural mechanisms underlying postural control may contextualize changes due to training and RHAE. The goal of this study was to determine whether postural sway during the Balance Error Scoring System (BESS) is related to white matter organization (WMO) in collegiate athletes. Collegiate soccer ( N =33) and non-soccer athletes ( N =44) completed BESS and diffusion tensor imaging. Postural sway during each BESS stance, fractional anisotropy (FA), and mean diffusivity (MD) were extracted for each participant. Partial least squares analyses determined group differences in postural sway and WMO and the relationship between postural sway and WMO in soccer and non-soccer athletes separately. Soccer athletes displayed better performance during BESS 6, with lower FA and higher MD in the medial lemniscus (ML) and inferior cerebellar peduncle (ICP), compared to non-soccer athletes. In soccer athletes, lower sway during BESS 2, 5, and 6 was associated with higher FA and lower MD in the corticospinal tract, ML, and ICP. In non-soccer athletes, lower sway during BESS 2 and 4 was associated with higher FA and lower MD in the ML and ICP. BESS 1 was associated with higher FA, and BESS 3 was associated with lower MD in the same tracts in non-soccer athletes. Soccer and non-soccer athletes showed unique relationships between sway and WMO, suggesting that sport-specific exposures are partly responsible for changes in neurological structure and accompanying postural control performance and should be considered when evaluating postural control after injury.Video Abstract available for more insights from the authors (see the Video, Supplemental Digital Content, available at: http://links.lww.com/JNPT/A472 ).

An agility training model for wheelchair court tennis athletes: An experimental study

One sport for people with disabilities is wheelchair court tennis, where athletes need good agility to move. The purpose of this study was to determine the effectiveness of the agility training model for wheelchair court tennis athletes. This research is experimental. The population in this study were wheelchair tennis court disability athletes in the Special Region of Yogyakarta totaling 14 athletes (male 10, female 4, aged 19 40 years). Where athletes with various disabilities, including spinal cord injury, single amputee, double amputee, or spina bifida. The sample was divided into two based on ordinal pairing of pretest data, i.e. the experimental group was treated with five agility training models and the control group trained as usual with a coach. The statistical analysis was conducted using the SPSS software, version 21. The results showed that the agility training model for 18 treatments was effective in increasing the agility of wheelchair tennis athletes, with a p value of 0.000 < 0.05. Sport specific training programmes are essential for improving athlete performance. A clear understanding of the nuances of developing athletes with disabilities is essential to developing appropriate programmes and strategies. The results of this study are expected to make a positive contribution to the development of progressive and innovative science, the contribution of the results of this study can add insight into the agility training model for wheelchair tennis athletes.

Most elite athletes return to preinjury competitive activity after surgical treatment for medial malleolus stress fractures.

To provide return-to-performanceoutcomes after surgical treatment for medial malleolus stress fractures in the elite athlete. Additionally, to describe an individualised surgical approach in the management of medial malleolus stress fractures. Five athletes (six ankles) underwent surgical treatment for a medial malleolus stress fracture. The surgical technique was based on the extent of the fracture line in steps with first arthroscopic debridement of bony spurs, microfracturing of the fracture line and screw fixation. Return-to-performance data includedtime to return to sport-specific training, normal training, first competitive activity, performanceand the return-to-performance rate. Patients returned to sport-specific training at a median of 10 weeks. They started normal training at 16 weeks postoperativelyand returned to their first competitive activity after 19 weeks. All patients had bony spurs on the distal tibia which were arthroscopically debrided. One patient received arthroscopic debridement of bony spurs alone. Four patients received additional microfracturing of the fracture line and three patients received screw fixation. All patients achieved clinical and radiographic union on follow-up computed tomography scan at 3 months postsurgery. At latest follow-up, no refractures nor hardware complications, nor any other complications were observed. Arthroscopic debridement of bony spurs, debridement and microfracturing of the fracture lineand screw fixation are all viable surgical tools in the management of medial malleolus stress fractures in elite athletes. The surgical approach containing these options should be tailored to the individual athlete based on the fracture line in the sagittal plane. While most athletes return to full competitive activity in 3-4 months, time to self-reported return to full performance is often much longer. Level IV.

Comparison of vertical jump and sprint performances between 3 × 3 and 5 × 5 elite professional male basketball players.

Given its fast-growing popularity and unique on-court competitive demands, 3 × 3 basketball has captured a considerable amount of attention over recent years. However, unlike research focused on studying 5 × 5 basketball players, there is a lack of scientific literature focused on examining countermovement vertical jump (CMJ) and sprint performance characteristics of 3 × 3 athletes. Thus, the purpose of the present study was to compare force-time metrics during both eccentric and concentric phases of the CMJ and acceleration and deceleration capabilities between 3 × 3 and 5 × 5 top-tier professional male basketball athletes. Ten 3 × 3 and eleven 5 × 5 professional basketball players volunteered to participate in the present study. Upon completion of a standardized warm-up, each athlete performed three maximum-effort CMJs, followed by two 10 m sprints. A uni-axial force plate system sampling at 1,000 Hz was used to analyze CMJ force-time metrics and a radar gun sampling at 47 Hz was used to derive sprint acceleration-deceleration measures. Independent t-tests and Hedge's g were used to examine between-group statistically significant differences (p < 0.05) and effect size magnitudes. The findings of the present study reveal that 3 × 3 and 5 × 5 professional male basketball players tend to display similar neuromuscular performance characteristics as no significant differences were observed in any force-time metric during both eccentric and concentric phases of the CMJ (g = 0.061-0.468). Yet, prominent differences were found in multiple measures of sprint performance, with large effect size magnitudes (g = 1.221-1.881). Specifically, 5 × 5 basketball players displayed greater average and maximal deceleration and faster time-to-stop than their 3 × 3 counterparts. Overall, these findings provide reference values that sports practitioners can use when assessing athletes' CMJ and sprint performance capabilities as well as when developing sport-specific training regimens to mimic on-court competitive demands.

Development of world class ski performance: Similarities and differences in pathways to expertise for freeskiers and cross-country skiers

The overall purpose of the present study was to investigate similarities and differences in pathways to expertise for freeskiers and cross-country skiers. Specifically, 1) Entrance to the main sport, 2) Amount of training hours and organization of training, and 3) Variability in activities and content in training. Sampling athletes had to be on the highest level in their sport by competing in, e.g., the World Cup, World Championship, Olympic games, freeride World Tour. In total, 18 world-class skiers participated in the study. Eight freeskiers (age range 19-37) and ten cross-country skiers (age range 22-32 years). They answered a digital questionnaire designed to collect retrospective data describing their pathways to expertise. The first section elicits biographical information, age for entering sport and practice. The second section focused on sport-specific training, accumulated hours of training, and the distribution of organized versus self-organized training. The third section recalled the variability of activities they participated in and how they perceived the relevance of the content of different types of training for their sport-specific development. The results showed similarities in athletes’ entrance to the main sport, specialization age and total amount of training. At the same time, differences were observed in their training history regarding the organization of training. In contrast to cross-country skiers, freeskiers seem to be more self-organized and more involved in additional activities besides their main sport. Interestingly, the two groups of world-class athletes representing sports with distinctive demands share several common variables in their paths to expertise, amplified by perceived specificity. Practitioners and academics should substantiate patience in expertise development, driven by a multi-disciplinary understanding of distinct and individual characteristics or conditions that may be beneficial in fulfilling varied future demands. Hence, research should explore the rationale behind and potential learning effects between sports and training content.

Effect of a Neuromodulation Protocol Associated With Sports Training on the Precision Sports Performance of a Wheelchair Basketball Para-Athlete: A Case Study.

To investigate whether transcranial direct-current stimulation (tDCS) optimizes the performance of a wheelchair basketball player on precision tasks. A right-handed wheelchair basketball player (1.5 points functional class) with myelomeningocele (low lumbar level) participated in this case study. The tDCS neuromodulation protocol was applied throughout 10 interventions of 20 minutes with a current intensity of 2mA, simultaneously with sport-specific training, 3times a week for 4weeks. Anodic stimulation was performed on the right cerebellar hemisphere (CB2) and cathodic stimulation in the left dorsolateral prefrontal cortex. A control participant was submitted to a sham-tDCS stimulation protocol for the same period. Functional performance was assessed before the intervention and after the 5th and 10th interventions using "pass accuracy," "free-throw shooting," and "spot shot" tests. Outcome measures were compared using percentage differences between preintervention, intermediate intervention, and postintervention values. There was a gradual increase in the athlete's total and average scores in all tests performed, with an overall improvement of 78% between the baseline and final assessments, while the control participant had an overall improvement of 6.5%. The tDCS protocol was effective in improving performance in precision activities in a wheelchair basketball player.

REGULAR LOW-DOSE CAFFEINE SUPPLEMENTATION DURING TRAINING DOES NOT PROVIDE ADDITIONAL BENEFIT TO SUBSEQUENT EXERCISE PERFORMANCE IN AUSTRALIAN RULES FOOTBALL ATHLETES

INTRODUCTION &amp; AIMS Acute caffeine supplementation can improve exercise types like those completed by Australian Rules football (ARF) players during training. Hypothetically athletes could implement caffeine supplementation prior to training, allowing them to complete more training volume, improving adaptation and subsequent exercise performance. This study aimed to investigate the effect of regular low-dose caffeine ingestion pre-training during a training block on subsequent exercise performance. METHODS Twenty-nine male semi-professional ARF players were randomly allocated to a caffeine or placebo group. The four-week intervention period involved participants ingesting 2 mg·kg·BM-1 of caffeine or a placebo 60 min prior to two of their three weekly training sessions, which incorporated sport-specific conditioning and skills training. To assess exercise performance, a battery of tests was used before and after the intervention period including the Yo-Yo Intermittent Recovery Test Level 2 (YYIRT2), 20 m sprint and vertical jump (VJ). Performance differences were assessed using a linear mixed-effect model. RESULTS Mean session rating of perceived exertion (p = .24) and total training load (p =.53) were not different between caffeine and placebo groups over the intervention. There were no significant time x condition interaction effects for YYIRT2 accumulated distance (p = .87), or 5, 10 and 20 m sprint times (p =.06 - .44), however both caffeine and placebo groups improved YYIRT2 distance and sprint times following four weeks of training (p &amp;lt; 0.01). There was a significant effect for time showing decreased VJ performance (p &amp;lt; 0.01), with greater reductions in the placebo group (p = .03). CONCLUSION It is more beneficial to implement an effective training program for athletes rather than focusing effort on regular low-dose caffeine supplementation to augment the training stimulus. The training stimulus itself is typically greater for developing endurance and sprint effort performance, with supplemental caffeine showing no additional performance benefit.

Practical Application of Respiratory Muscle Training in Endurance Sports

ABSTRACT Since traditional sport-specific training or exercise programs do not create enough stimulus to improve the function of the respiratory muscles, the rationale to introduce respiratory muscle training (RMT) emerged. RMT is associated with improved endurance performance and pulmonary function, and it reduced respiratory fatigue, perceived exertion, or breathlessness. The purpose of this article is to provide coaches with tools to select the appropriate form of RMT in the context of the athletes' needs, using appropriate methods, techniques, devices, and testing protocols. The video abstract is presented in Supplemental Digital Content as SDC 1.

Effect of neuromuscular injury prevention strategies on injury rates in adolescent males playing sport: a systematic review protocol.

This review will assess the effectiveness of neuromuscular injury prevention strategies on injury rates among adolescent males playing sports. Adolescent athletes are predisposed to injuries during this period of growth. Growth-related injury risk factors can be mitigated by implementing appropriate neuromuscular injury prevention strategies. This review will include all sporting disciplines in summarizing the components and assessing the effectiveness of injury prevention strategies in the adolescent male population. Randomized controlled trials investigating adolescent males, between the ages of 13 and 18 years, participating in organized sports, in any setting and level of participation, will be included. Studies that evaluate neuromuscular injury prevention strategies (eg, balance, proprioceptive, plyometric, agility, strength, weight, conditioning and sport-specific exercises and training, warm up, cool down, stretches, neuromuscular control) vs no intervention or standard training and competition exposure will be included. The outcomes of interest are injury incidence and prevalence rates. Databases searched will include MEDLINE (PubMed), CINAHL Complete (EBSCOhost), ClinicalKey, SPORTDiscus (EBSCOhost), Physiotherapy Evidence Database (PEDro), Scopus, ScienceDirect, MasterFILE Premier (EBSCOhost), Academic Search Complete (EBSCOhost), Cochrane Central Register of Controlled Trials (CENTRAL) and ClinicalTrials.gov. Gray literature and unpublished studies will be searched via Health and Medical Complete (ProQuest Dissertations & Theses). Study screening and selection against inclusion criteria will be performed. Data extraction and critical appraisal will be performed using the standardized JBI templates and checklists for qualitative research. All stages will be performed by 2 independent reviewers, with conflicts resolved by a third reviewer. PROSPERO CRD42022327047.

Investigating the Effectiveness of Six-Week Plyometric Training Intervention on Speed-Strength Fitness Abilities of Male Team Handball Players

Background and study aim: Plyometric training is widely acknowledged as an effective option for athletes to attain improved physical performance. A variety of exercises involving the lower limb's stretch-shortening cycle can be used for plyometric training. Numerous studies have examined the impact of plyometric training on various outcomes in various populations over the past few decades. Objective: This study set out to ascertain how a six-week plyometric training programme affected the development of speed-strength fitness measurements in male team handball athletes. Material and methods: Total of thirty intercollegiate level team handball athletes were randomly assigned to 2 groups i.e. plyometric training group with an average age of 20.7 ± 0.7 years, height of 175.3 ±4.2, weight of 75.1 ± 4.1 and BMI of 24.43 ± 0.97; control group with an average age of 20.8 ± 0.7, height of 175.1 ± 4., weight of 74.9 ± 3.1 and BMI of 24.47 ± 1.37. The linear sprint (10 m and 30 m), standing long jump (SLJ), and change of direction sprint (CODS) were evaluated before and after the intervention for thirty male team handball athletes who were randomly assigned to either the plyometric training group (PTG) (n = 15) or the control group (CG) (n = 15). Results: Within group changes were analyzed using paired t-test. The significant differences obtained between the tests in all dependent variables. Conclusion: When it comes to linear sprints, standing long jumps, and change of direction sprints, plyometric training works better than CG. Consequently, adding either plyometric training or sport-specific training to an athlete's regimen may help male team handball players achieve greater speed-strength fitness.

Return-to-play decision-making following ankle injury: a comprehensive case analysis of the functional hop test

Following anterior cruciate ligament (ACL) injury of the knee, the functional hop test (an averaging of 4 component hop tests including single-hop, triple-hop, cross-over-hop, and 6-meter-hop) is commonly used by sports medicine physicians, doctors of physical therapy, and athletic trainers in return-to-practice and return-to-play decision making. In this case report, the functional hop test was applied to a 31-year-old recreational basketball player status-post full-tear of the anterior talofibular ligament (ATFL) to examine the applicability of a standardized, efficient, and easy-to-administer functional test in making return-to-play decisions following an ankle injury. The functional hop test was administered 5 times across a treatment course of 11 physical therapy sessions emphasizing pain-free range of motion, baseline strength, weight-bearing loading, and sport-specific training. The functional hop test was found to be a helpful (albeit imperfect) tool for clinical decision-making following an ankle injury. Specifically, improvements in landing skill/confidence of single hop accounted for the greatest gains in total score in the early phase of rehabilitation, while momentum and plyometric skill/control of triple hop accounted for the greatest gains in total score in the later phase of rehabilitation. Modification of the functional hop test to include sub-component tests of strength, endurance, and/or lateral hops are discussed.

Olympic Weightlifting Training for Sprint Performance in Athletes: A Systematic Review with Meta-analysis.

This systematic review and meta-analysis aimed to determine whether Olympic weightlifting (OW) exercises would improve sprint performance when compared to a control intervention, (no training, standard sport-specific training, traditional resistance training, or plyometric training). Medline, Web of Science, SportDiscus, CINAHL, and Biological Science from inception to September 2022 was searched. Two authors independently selected the included studies, extracted data, and appraised the risk of bias. Certainty of the evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation methodology. The primary meta-analysis combined the results of the sprint performance over the full length of each sprint test. The secondary meta-analyses combined the results of the sprint performance at 5, 10, and 20 m distance to capture information about the acceleration phase of the sprint tests. Eight studies with 206 athletes (female n=10, age range: 18.9-24.2 years) were identified. Sprint performance did not differ significantly comparing OW to the control intervention, nor at the full length (standardized mean difference=-0.07, 95% CI=-0.47 to 0.34, p=0.75, I2=46%) or during the acceleration phase (p≥0.26) of the sprint test. OW training does not improve sprint performance to a greater extent than comparator interventions.

Evaluation of Scapular Dynamics in Sports Trainees

Background: The scapula provides stability and mobility for efficient upper-limb movement. Optimal scapular kinematics are essential for efficient force generation and injury prevention. Sports trainees, particularly those involved in sports requiring repetitive or high-intensity shoulder movements, are susceptible to injuries and performance limitations if associated with aberrant scapular mechanics. Understanding the intricacies of scapular dynamics is essential for designing tailored training interventions that enhance athletic performance. Rationale and objectives: Previous research has emphasized the need for sports-specific training protocols. The measurement of scapular rotation has gained significant attention. Evaluating asymmetries in scapular dynamics across various sports trainee populations is a step forward for the need for tailored interventions and injury prevention strategies in preventing injury and planning better exercise programs. The study uses a PALM meter for the measurement of scapular rotation. Methodology: 40 Subjects 19 to 24 years old from the sports authority of Andhra Pradesh, India, were studied after obtaining written informed consent. Scapular rotation measured in a neutral and with hands on the hip position. Root of the scapula (RSS), inferior angle of the scapula (IAS), and spinous processes (Sp) of C7 to T8 are taken as the anatomical landmarks. Measurements of scapular position taken in two arm positions: shoulder neutral, hands on hip. A right-angle triangle created by dropping a perpendicular line from the scapula's root to intersect the horizontal line between the scapula's inferior angle and the thoracic spine's closest spinous process (IAS-Sp). The hypotenuse represents the distance IAS to RSS, while the side opposite the angle θ is the distance IAS-Sp minus RSS-Sp. A positive result indicates upward scapular rotation, while a negative result indicates downward scapular rotation. Results and Conclusion: This cross-sectional study revealed variations in scapular rotation and the distances from spinous processes in the scapular position in neutral and hands-on Hip positions from right to left and male to female. Further studies are required to understand scapular rotation variations concerning various sports involving overhead activity, heavy weight lifting, endurance sports and anatomical variations, muscle activation patterns, or task demands. KEYWORDS: Scapular Rotation, Sports Trainees, Shoulder Movements, Scapular Mechanics, Athletic Performance.

Assessment of inter-individual variability in hamstring muscle recovery after a sport-specific sprint training in women and men.

Background: Hamstring muscles are most affected by multiple sprint-based sports as a result of muscle strain during sprinting, leading to reduced performance and increased risk of injury. Therefore, the purpose of the study was to assess inter-individual variability in hamstrings recovery after a sport-specific repeated-sprint training (RST), through sprint-specific markers of muscle recovery and associated muscle damage biomarkers in women and men. Methods: Healthy females (n = 14) and males (n = 15) underwent 10 repeated 40-m sprints with a 3-min rest pause between each repetition. Force-generating capacity (FGC) by the 90° hip :20° knee test and range of motion Jurdan test, together with serum biomarkers [sarcomeric mitochondrial creatine kinase (sMtCK), oxidative stress, irisin] were tested at baseline and 24-, 48- and 72-h post-exercise through a repeated measures design. Participants were classified according to FGC loss into high responders (HR) and low responders (LR). Results: 21 individuals (10 females, 11 males) were classified as HR (FGC loss >20% and recovery >48h), while 8 individuals (4 females, 4 males) were classified as LR. HR individuals showed unrecovered maximal voluntary isometric contraction (MVIC) torque until 72h post-training (p = 0.003, np 2 = 0.170), whereas only HR males showed decreased range of motion (p = 0.026, np 2 = 0.116). HR individuals also showed increased sMtCK (p = 0.016, np 2 = 0.128), oxidative stress (p = 0.038, np 2 = 0.106) and irisin (p = 0.019, np 2 = 0.123). Conclusion: There is inter-individual variability in the muscular response to a sport-specific RST, identifiable by MVIC torque assessment. The findings support that the 90° hip :20° knee test is a powerful indirect test to screen hamstrings recovery in both women and men, in a cost-effective way. However, the Jurdan test might not be able to monitor hamstrings recovery in sportswomen after RST. Decreases in muscle capacity are linked to damage to muscle sarcolemma and mitochondria until 72h post-exercise. Overall, 72h will not be adequate time to restore hamstrings structure and function after a sport-specific RST in both female and male responders.

Comparison of Mental Hardiness Between Athletes in Individual and Team Sports of the CISM of the I.R.I.

Objective: The objective of this study was to compare the levels of mental hardiness among athletes from different sports within the national military teams of the Islamic Republic of Iran, focusing on both individual and team sports. Methods and Materials: This descriptive-applied study employed a causal-comparative (ex post facto) design. The sample consisted of 40 athletes from various sports, including volleyball, taekwondo, wrestling, pentathlon, and athletics. Participants were selected purposefully and completed the Sports Mental Hardiness Questionnaire (SMHQ). Data were analyzed using one-way analysis of variance (ANOVA) to compare overall mental hardiness and its subscales across different sports. Tukey’s post-hoc test was employed to identify specific group differences where significant ANOVA results were found. The assumptions for ANOVA, including normality, homogeneity of variances, and independence, were checked and confirmed. Findings: The one-way ANOVA revealed significant differences in overall mental hardiness among the different sports (F(4, 39) = 27.02, p = 0.001). Significant differences were also found in the subscales of confidence (F(4, 39) = 20.52, p = 0.000), constancy (F(4, 39) = 17.54, p = 0.000), and control (F(4, 39) = 6.43, p = 0.001). Tukey’s post-hoc test indicated that taekwondo and volleyball athletes exhibited significantly higher mental hardiness scores compared to athletes from wrestling, athletics, and pentathlon. Conclusion: The study concludes that the nature of the sport, particularly the level of physical and psychological demands, significantly influences mental hardiness levels in athletes. Taekwondo and volleyball athletes displayed higher mental hardiness, suggesting the need for sport-specific mental training programs. These findings highlight the importance of tailored psychological interventions to enhance mental hardiness, particularly in competitive military sports environments.

Maximal oxygen uptake and cardiovascular adaptation to handball game specific endurance circuit training in handball players

Now a day, the sports team coaches, trainers and other support staffs have a hectic job to deal with the preparation of their team players with consistent, precise and greater effort to meet the demands of the competition in shortest duration. Various training modalities were adopted depending upon the necessity that improves sports performance. Handball team coaches apparently felt that fitness and skill go hand in hand, where sports specific training caters to achieve this goal. Thus, the present study focussed on assessing the adaptations of maximal oxygen uptake and cardiovascular variables to handball game specific endurance circuit training. To accomplish the purpose twenty-four (24) trained university male handball players with a playing experience of more than eight years gave consent to participate. The selected twenty-four players were classified into two groups as Handball Game Specific Endurance Circuit Training Group (HGSECTG = 12) and Control Group (CG = 12). To test the effectiveness of handball game specific endurance circuit training (HGSECT) players performed specifically constructed handball circuit 3 days in a week for 12 weeks at 90-95 % of maximal heart rate for two minutes duration and active recovery by walking. HGSECTG showed significant improvement on maximal oxygen uptake (t = 8,516, p &lt; 0,05) and distance covered in Yo-Yo test also increased (t = 8,4, p &lt; 0,05). Similarly, cardiovascular modifications are noted in maximum heart rate (HRPEAK, t = 2,372, p &lt; 0,05) and resting heart rate (HRREST, t = 3,975, p &lt; 0,05) and percentage of heart rate reserve (%HRRESERVE, t = 3,004, p &lt; 0,05). We conclude that handball game specific endurance training programs could be sufficiently suitable to develop maximal oxygen uptake and positive adaptation of cardiovascular variables in twelve weeks of training among handball players. The intensity, duration, frequency and recovery of the intervention displayed improvement in VO2PEAK with reduced condition on cardiovascular stress