Journal of Human Kinetics最新文献_第3页

Factors Influencing the Efficacy of Concurrent Training in Team Sports: A Narrative Review. 影响团队运动中同步训练效果的因素：一个叙述性的回顾。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2026-02-05 eCollection Date: 2026-01-01 DOI: 10.5114/jhk/216685

Rafael Tundidor-Duque, Fernando Pareja-Blanco, Milosz Drozd, Lucas A Pereira, Irineu Loturco

{"title":"Factors Influencing the Efficacy of Concurrent Training in Team Sports: A Narrative Review.","authors":"Rafael Tundidor-Duque, Fernando Pareja-Blanco, Milosz Drozd, Lucas A Pereira, Irineu Loturco","doi":"10.5114/jhk/216685","DOIUrl":"https://doi.org/10.5114/jhk/216685","url":null,"abstract":"Concurrent training (CT)-the integration of strength and endurance exercises within the same session or cycle-is widely implemented in team sports. However, its optimal configuration and the conditions under which the so-called \"interference effect\" occurs remain subjects of debate. This narrative review critically examines the factors influencing CT efficacy in team sports, emphasizing the roles of training sequence, inter-session recovery, the endurance-training modality, and athletes' strength levels. Thirteen experimental studies involving male and female athletes from various team sports and competitive levels were analyzed. The evidence suggests that CT may effectively enhance both strength and endurance capacities when properly structured. Performing strength training before endurance training, or separating sessions by at least six hours, appears to minimize neuromuscular fatigue and preserve positive performance adaptations. Conversely, high volumes of endurance training or insufficient recovery periods tend to intensify the interference effects, particularly in speed- and power-related outcomes, which are often more pronounced in top-level athletes. Overall, CT may be a viable strategy for optimizing multiple physical qualities in team-sport environments, provided that its variables are carefully and systematically manipulated. This review also highlights the need for long-term interventions and female-specific studies to refine current practices and strengthen the evidence base in applied high-performance settings.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"100 ","pages":"135-149"},"PeriodicalIF":2.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12946880/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147326324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Impact of a High-Intensity Functional Training Program on Athletic Performance of Male Amateur Soccer Players: A Randomized Controlled Study. 高强度功能性训练计划对男性业余足球运动员运动表现的影响：一项随机对照研究。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2025-11-20 eCollection Date: 2026-01-01 DOI: 10.5114/jhk/202312

Amir Hossein Haghighi, Farshid Ammarlou, Hamid Marefati, João Gustavo Claudino, Hadi Shahrabadi, Filipe Manuel Clemente, Victor Coswig, Daniel Souza, Paulo Gentil

{"title":"The Impact of a High-Intensity Functional Training Program on Athletic Performance of Male Amateur Soccer Players: A Randomized Controlled Study.","authors":"Amir Hossein Haghighi, Farshid Ammarlou, Hamid Marefati, João Gustavo Claudino, Hadi Shahrabadi, Filipe Manuel Clemente, Victor Coswig, Daniel Souza, Paulo Gentil","doi":"10.5114/jhk/202312","DOIUrl":"https://doi.org/10.5114/jhk/202312","url":null,"abstract":"High-Intensity Functional Training (HIFT) is a popular training modality that aims to improve multiple physical fitness and performance components. This study aimed to examine the effects of HIFT on athletic performance of male amateur soccer players. This randomized controlled study was conducted over a six-week period. Athletes were randomly enrolled into HIFT (n = 12) and control (CON, n = 12) groups. The HIFT group replaced part of the specific training with three weekly sessions of HIFT, whereas the CON group participated only in regular soccer training. Before and after the intervention, athletes were assessed for the 20-m sprint (s), bench press strength (kg), squat strength (kg), average anaerobic power (w), the fatigue index (w/s), the change-of-direction sprint (s), VO2max (ml/kg/min), soccer specific dribbling track test travel distance (m), and soccer dribble sprint skill (s). The HIFT group showed greater (p ≤ 0.001-0.018, pη2 = 0.229-0.584) improvements when compared to the CON group, for the 20-m sprint, bench press, and squat strength, fatigue index, VO2max, and soccer specific dribbling track test traveled distance. The average anaerobic power approached significance (p = 0.051, pη2 = 0.162), but was not significantly different between the groups. HIFT may replace part of regular soccer training to improve athletic performance in amateur soccer players.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"100 ","pages":"165-177"},"PeriodicalIF":2.8,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12946879/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147326211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Psychomotor and Basic Cognitive Abilities in Professional Athletes: A Systematic Review. 职业运动员的精神运动和基本认知能力：系统综述。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2025-11-20 eCollection Date: 2026-01-01 DOI: 10.5114/jhk/203566

Izabela Huzarska-Rynasiewicz, Diogo V Martinho, Adilson Marques, Marcelo de Maio Nascimento, Élvio Rúbio Gouveia, Andreas Ihle, Krzysztof Przednowek

{"title":"Psychomotor and Basic Cognitive Abilities in Professional Athletes: A Systematic Review.","authors":"Izabela Huzarska-Rynasiewicz, Diogo V Martinho, Adilson Marques, Marcelo de Maio Nascimento, Élvio Rúbio Gouveia, Andreas Ihle, Krzysztof Przednowek","doi":"10.5114/jhk/203566","DOIUrl":"https://doi.org/10.5114/jhk/203566","url":null,"abstract":"There are several ways to describe psychomotor and cognitive abilities in the context of sport performance, including psychomotor abilities, cognitive functioning, perceptual-cognitive skills, exercise-cognition, and motor-cognitive abilities. This review aimed to identify methods for measuring the aforementioned concepts within the context of relevant terminology. Studies examining psychomotor performance, as well as attentional, perceptual, and visual processes, were selected from three online databases: PubMed, Scopus, and Web of Science. Twenty-eight (28) studies were included in the review. The results were divided into sample characteristics and methodological details, including nomenclature specific to performance, methods, and outcomes. The studies were also categorised in the context of comparisons by the competitive level, sex and sport. Analysis showed that the most frequent basis of comparison included athletic performance. Computer-based methods occurred with the greatest frequency across all sport disciplines. Outcomes were typically reported in milliseconds, focusing on reaction time or accuracy. There was no consistency in the presentation of performance nomenclature and performance procedure. Addressing the selection and description of methods is relevant as it can contribute to a more effective research intervention design.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"100 ","pages":"259-280"},"PeriodicalIF":2.8,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12946868/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147326255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Role of Instructional Constraints Performed by Coaches on Tactical Behavior of Soccer Players: A Systematic Review. 教练的指导约束对足球运动员战术行为的作用：一个系统的回顾。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2025-11-20 eCollection Date: 2026-01-01 DOI: 10.5114/jhk/202057

Cristiano Zarbato Morais, Júlio César da Silva Bispo, Lucas Shoiti Carvalho Ueda, Michel Milistetd, Juliano Fernandes da Silva, Paulo Henrique Borges

{"title":"The Role of Instructional Constraints Performed by Coaches on Tactical Behavior of Soccer Players: A Systematic Review.","authors":"Cristiano Zarbato Morais, Júlio César da Silva Bispo, Lucas Shoiti Carvalho Ueda, Michel Milistetd, Juliano Fernandes da Silva, Paulo Henrique Borges","doi":"10.5114/jhk/202057","DOIUrl":"https://doi.org/10.5114/jhk/202057","url":null,"abstract":"Among strategies used by coaches in the training environment, feedback appears as a common coach practice. Regarding the collective characteristics of soccer, it is important to observe the game in the same scale. In the coaching process, players' behavior can be constrained by coaches using feedback. This study aimed to investigate the role of feedback, performed by coaches, on the tactical behavior of soccer players. We searched in five databases: Scopus, Pubmed, Scielo, SportDiscus and Web of Science, following PRISMA-P guidelines. The PICOS strategy was used to establish eligibility criteria. Only quantitative studies written in English and published in peer reviewed journals were included. From the 1,149 articles found in the initial search, six were included in the review, and then were evaluated considering their methodological quality and risk of bias, through the quality index and the Joanna Briggs Institute (JBI) critical appraisal tools, respectively. Papers presented high heterogeneity regarding methods to apply feedback interventions and to assess the players' tactical behavior. Differences were observed in the task proposed to players, varying from small-sided games to official size games (3 vs. 3 to 11 vs. 11). Despite these differences, similarities could be found regarding the use of notational analysis in half of the papers, and analysis through positional data in the other half. The use of instructional constraints before the game seems to bring more clarity on how to better coordinate collective actions, causing a positive effect on players' tactical behavior.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"100 ","pages":"293-308"},"PeriodicalIF":2.8,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12946878/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147326225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-Load Conditioning with Blood Flow Restriction and Whole-Body Vibration Induces Post-Activation Performance Enhancement Effects and Improves Anaerobic Performance: A Pilot Study. 低负荷条件与血流限制和全身振动诱导激活后性能增强效应和改善无氧性能：一项试点研究。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2025-11-20 eCollection Date: 2026-01-01 DOI: 10.5114/jhk/202048

Ruibin Guo, Yinglu Hong, Nan Xu, Hongwen Wei

{"title":"Low-Load Conditioning with Blood Flow Restriction and Whole-Body Vibration Induces Post-Activation Performance Enhancement Effects and Improves Anaerobic Performance: A Pilot Study.","authors":"Ruibin Guo, Yinglu Hong, Nan Xu, Hongwen Wei","doi":"10.5114/jhk/202048","DOIUrl":"https://doi.org/10.5114/jhk/202048","url":null,"abstract":"This study examined the post-activation performance enhancement (PAPE) effects of low-load conditioning (30% of 1 repetition maximum (RM) squat) with blood flow restriction (BFR) or whole-body vibration (WBV) only, and with both BFR and WBV on anaerobic performance. Forty anaerobically-trained men were randomly allocated into one of the four groups: CON, BFR, WBV or BFR+WBV, and completed five visits: Visit 1: 1RM test and familiarization session; Visit 2: Wingate test; and Visits 3 to 5: conditioning according to the group assignment, followed by a Wingate test after different rest intervals: 4 (T4), 8 (T8) or 12 (T12) min on each visit, respectively, in randomized order. Capillary blood lactate samples were collected at the 3rd, the 5th, the 8th and the 10th min after the Wingate test. Analysis revealed significant interaction effects between group and time on peak blood lactate concentration (p < 0.019). The within-group analysis showed that compared to PRE, 1) mean power (mean-P), mean power/body mass (mean-P/BM) and total work (TW) of all three groups were significantly greater at T8 (p < 0.045); 2) peak power and peak power/body mass of the BFR and the WBV group were greater at T8 (p < 0.024); 3) minimal power of the BFR+WBV group was significantly lower, and fatigue slopes were significantly greater at T8 (p < 0.032); and 4) mean-P, mean-P/BM and TW of the BFR+WBV group were significantly greater at T4 (p < 0.015). Low-load conditioning combined with BFR or WBV may induce potential PAPE to enhance anaerobic performance, and the combined-type of the protocol may induce such benefits in a faster time fashiont.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"100 ","pages":"179-189"},"PeriodicalIF":2.8,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12946875/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147325767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Crossover Effects of Visuomotor Task Complexity in Training Reactive Agility of Ball Sports Athletes. 视觉运动任务复杂性在球类运动员反应敏捷性训练中的交叉效应。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2025-11-20 eCollection Date: 2026-01-01 DOI: 10.5114/jhk/210502

Keyi Zhang, Wing Shan Chan, Hei Shuen Lau, Dongxiang Huang, Daniel Hung Kay Chow

{"title":"The Crossover Effects of Visuomotor Task Complexity in Training Reactive Agility of Ball Sports Athletes.","authors":"Keyi Zhang, Wing Shan Chan, Hei Shuen Lau, Dongxiang Huang, Daniel Hung Kay Chow","doi":"10.5114/jhk/210502","DOIUrl":"https://doi.org/10.5114/jhk/210502","url":null,"abstract":"Visuomotor reaction is a pivotal skill for athletes in ball sports. Training of such ability involves complex processing and coordination between cognitive functions and motor execution. Given the scattered literature on the topic related to task complexity, our study aimed to investigate the skill transfer effect among visuomotor tasks with different levels of complexity. Twenty-eight amateur ball players, with the mean age of 22.4 years old (SD = 1.9), were recruited and randomly assigned to either a simple or a complex visuomotor task intervention group, comprising bi-directional and multi-directional visuomotor training, respectively. Our study involved a four-week visuomotor agility training program. Visuomotor reaction times were recorded and analysed before and after the four-week intervention. The results demonstrated that both simple (F = 73.912; p < 0.01; ηp2 = 0.745) and complex (F = 80.6; p < 0.001; ηp2 = 0.762) visuomotor training were effective in enhancing participants' visuomotor performance at both levels of task complexity. The crossover effect of complex visuomotor training resulted in substantial improvement in both simple and complex visuomotor reaction time, suggesting that implementing complex visuomotor training could be more effective than a simple visuomotor training approach. These findings demonstrate the transferable effects associated with complex visuomotor agility training, highlighting its potential to enhance reactive agility across different levels of task complexity.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"100 ","pages":"5-15"},"PeriodicalIF":2.8,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12946877/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147326264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kinematic and Kinetic Comparison of Sprint-Specific Exercises: Impact on Maximal Sprint Acceleration Training. 短跑专项训练的运动学和动力学比较：对最大短跑加速训练的影响。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2025-10-24 eCollection Date: 2025-10-01 DOI: 10.5114/jhk/211899

Jérémy Jusseaume, Charly Fornasier-Santos, Jean-Benoit Morin, Benjamin Millot, Gaël Guilhem, Jean Slawinski

{"title":"Kinematic and Kinetic Comparison of Sprint-Specific Exercises: Impact on Maximal Sprint Acceleration Training.","authors":"Jérémy Jusseaume, Charly Fornasier-Santos, Jean-Benoit Morin, Benjamin Millot, Gaël Guilhem, Jean Slawinski","doi":"10.5114/jhk/211899","DOIUrl":"10.5114/jhk/211899","url":null,"abstract":"Sprint-specific exercises (SSEs) are believed to train force, power and/or velocity qualities involved in the acceleration phase of sprinting. However, the kinetics and the kinematics of such exercises have never been explored. The aim of this study was to compare mechanical variables (horizontal and vertical forces, horizontal velocity of the centre of mass and the ratio of force) between SSEs and an all-out 40-m sprint acceleration (Sref). These variables were measured over each situation (Sref and 14 SSE) using six track-embedded force plates. The horizontal forces and velocities were either lower or equal to those of the Sref (SSE grand average deviation from FVP ~ -0.29 N∙kg-1 for force; SSE grand average from Sref ~ -0.14 m∙s-1 for velocity), while vertical force output was mostly greater in the SSE than the Sref (SSE mean deviation from Sref ~0.49 N∙kg-1). The ratio of force was lower or equal for the SSE compared to Sref. Despite large inter-individual variability, these SSEs seem useful to stimulate vertical force production, and not horizontal as hypothesised by coaches. These results suggest the importance of analysing the SSE used during training, from a force-velocity point of view, to better characterize their effectiveness.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"99 ","pages":"191-205"},"PeriodicalIF":2.8,"publicationDate":"2025-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12612812/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145541009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Sport Motivation on Burnout in Adolescent Athletes-Chain Mediating Effect of Life Satisfaction and Mental Toughness. 运动动机对青少年运动员职业倦怠的影响——生活满意度和心理韧性的连锁中介效应。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2025-10-01 DOI: 10.5114/jhk/201433

Hongli Zhang, Hongtao Ma

{"title":"The Effect of Sport Motivation on Burnout in Adolescent Athletes-Chain Mediating Effect of Life Satisfaction and Mental Toughness.","authors":"Hongli Zhang, Hongtao Ma","doi":"10.5114/jhk/201433","DOIUrl":"10.5114/jhk/201433","url":null,"abstract":"This study explored the effects of sport motivation on athlete burnout among adolescent athletes and examined the mediating roles of life satisfaction and mental toughness. A total of 638 adolescent athletes (mean age = 15.64 ± 2.28 years) were assessed using the athletic motivation scale, the satisfaction with life scale, the adolescent mental toughness scale, and the athlete burnout questionnaire. Data were analyzed using SPSS Process for chain mediation analysis. Results indicated that sport motivation negatively predicted athlete burnout in both male (r = -0.523) and female athletes (r = -0.491). For male athletes, the total effect of sport motivation on athlete burnout was -0.374, with direct and indirect effects of -0.188 and -0.186, respectively. For female athletes, the total effect was -0.601, with direct and indirect effects of -0.363 and -0.238, respectively. Male athletes showed indirect effects through mental toughness (effect = -0.174; share = 46.52%) and the chain mediation of life satisfaction and mental toughness (effect = -0.072; share = 19.25%). Female athletes exhibited indirect effects through life satisfaction (effect = -0.043; share = 7.15%), mental toughness (effect = -0.151; share = 25.12%), as well as the chain mediation of life satisfaction and mental toughness (effect = -0.044; share = 7.32%). This study highlights the role of sport motivation in reducing athlete burnout. For female athletes, burnout was influenced by all three mediating pathways (life satisfaction, mental toughness, and their chain mediation). For male athletes, the effects were predominantly mediated through mental toughness and the chain mediation of life satisfaction along with mental toughness.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"99 ","pages":"239-252"},"PeriodicalIF":2.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12612805/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145540864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Talent Selection in Portuguese National Futsal Teams. 葡萄牙国家五人制足球队的人才选拔。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2025-10-01 DOI: 10.5114/jhk/199379

Diogo Mendes, Diogo V Martinho, Bruno Travassos, Élvio R Gouveia, Nestor Ordoñez Saavedra, Hugo Sarmento

{"title":"Talent Selection in Portuguese National Futsal Teams.","authors":"Diogo Mendes, Diogo V Martinho, Bruno Travassos, Élvio R Gouveia, Nestor Ordoñez Saavedra, Hugo Sarmento","doi":"10.5114/jhk/199379","DOIUrl":"10.5114/jhk/199379","url":null,"abstract":"This study investigated the talent selection processes implemented in youth and adult national futsal teams. The initial database provided by the Portuguese Football Federation included 668 male futsal players, and statistical analysis was conducted with varying sample sizes. Binary logistic regressions were performed to determine the influence of futsal participation on the likelihood of achieving international status at the adult level. Subsequently, the age of first registration was plotted against the national team in which the first international appearance was recorded. Finally, the selection, re-selection, and de-selection of players from the under-17 youth national team to the adult team were described using frequencies and percentages. For the total sample, the results indicated that an earlier age at first registration, participation in the 1st Division, involvement in foreign competitions, and engagement with multiple clubs increased the likelihood of being selected for the international team. The analysis also considered the year in which youth national teams were developed. Before 1999, players demonstrated earlier registration ages; however, the timing of starting futsal practice became less relevant to attaining international adult status after 1999. Furthermore, a negligible percentage of youth national team players progressed to the senior national team, highlighting the collectivist approach employed by futsal national coaches. The findings of this study suggest that the transition of talent from youth to adult national teams warrants further investigation. Coaches should develop strategies to promote the development of youth talent as they progress towards adult-level status.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"99 ","pages":"253-261"},"PeriodicalIF":2.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12612822/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145540844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Load Variation on Lower Limb Joint Torque during Overhead Squats. 负荷变化对上蹲时下肢关节扭矩的影响。

IF 2.8 3区医学

Journal of Human Kinetics Pub Date : 2025-10-01 DOI: 10.5114/jhk/195877

Yusuke Ikeda, Masaki Kawabe, Tetsuya Hisamitsu

{"title":"Impact of Load Variation on Lower Limb Joint Torque during Overhead Squats.","authors":"Yusuke Ikeda, Masaki Kawabe, Tetsuya Hisamitsu","doi":"10.5114/jhk/195877","DOIUrl":"10.5114/jhk/195877","url":null,"abstract":"The purpose of this study was to examine the kinematic and kinetic changes in overhead squats (OHSs) with increasing loads and clarify the relationship between OHS movement and shoulder joint flexibility. Fourteen male college students randomly performed OHSs using 20% of their body mass (BM), 40% of their BM, and a plastic pipe (no load). The motion and ground reaction forces during OHSs were recorded. The relative peak torque of the hip under the 20% and 40% BM conditions during both negative and positive phases of the OHS was significantly greater than that under the no-load condition, while the relative peak torque of the knee did not increase. The relative peak torque of the hip was negatively correlated with the angles of the lower trunk at the lowest point of the center of mass (CM). In relation to the movement of the OHS and shoulder joint flexibility, a correlation was observed between the angle of the lower trunk at the lowest point of the CM and the shoulder flexibility test score (r = 0.561-0.598, p < 0.05), suggesting that a flexible shoulder joint could lead to the lower trunk leaning forward during the OHS. These results reveal that in the overhead squat, where the relative load to body weight is smaller compared to the normal squat, an increase in the load leads to an increase in hip torque without a corresponding increase in knee torque. Furthermore, the increase in hip torque is influenced by the angle of the lower trunk.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"99 ","pages":"5-18"},"PeriodicalIF":2.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12612806/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145540946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0