J Robinson, D Forsdyke, L Arenas, Z Dawson, M King, N Myhill, C Towlson, M Springham, L Walsh, S H Mallinson-Howard, S Barrett, J Salter
{"title":"Bio-banding influences talent experts' ratings of psycho-social behaviours during 11 v 11 soccer match-play.","authors":"J Robinson, D Forsdyke, L Arenas, Z Dawson, M King, N Myhill, C Towlson, M Springham, L Walsh, S H Mallinson-Howard, S Barrett, J Salter","doi":"10.1080/02640414.2025.2570047","DOIUrl":"https://doi.org/10.1080/02640414.2025.2570047","url":null,"abstract":"<p><p>Selection into talent programmes is determined by perceptions of talent experts (i.e. professional academy scouts or coaches). Biological maturity status and/or timing can influence psycho-social behaviours in match-play. This study examined whether bio-banding (i.e. grouping players by biological maturity) influences talent experts' ratings of psycho-social behaviours. Using the Hull Soccer Behavioural Scoring Tool (HSBST), 14 talent experts rated 118 trained/developmental, male, adolescent (age: 13.7 ± 0.8 years) soccer players during six 20-minute, chronological age and bio-banded 11v11 matches. Players were bio-banded using percentage of predicted adult height (%PAH) using modified band thresholds relevant to peak height velocity (PHV; < 90%PAH, pre; 90-96%PAH, circa; and > 96%PAH, post-PHV). Dependent sample t-tests between the whole group ratings identified significant differences (<i>p</i> < 0.05) between formats. Decision-making and composure ratings increased in pre-PHV, with X-factor improving for circa-PHV players. Perceptions of resilience, competitiveness and confidence had <i>small</i> to <i>moderate</i> (<i>d</i> = 0.26-0.65) reductions for early maturers. Bio-banding significantly enhanced perceptions of competitiveness, confidence, composure and X-factor in on-time maturers (<i>p</i> = 0.011-0.049). Data indicates bio-banding positively influences perceptions of composure, competitiveness, decision-making and X-factor by talent experts, particularly for less biologically advanced players. Bio-banding may alter talent experts' observations of psycho-social behaviours, potentially improving (de)selection accuracy by assessing talent more holistically.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-14"},"PeriodicalIF":2.5,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145275015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Miguel Crespo, Christine Nash, Rafael Martínez-Gallego
{"title":"Talent development in tennis: A qualitative study of emerging regions.","authors":"Miguel Crespo, Christine Nash, Rafael Martínez-Gallego","doi":"10.1080/02640414.2025.2570061","DOIUrl":"https://doi.org/10.1080/02640414.2025.2570061","url":null,"abstract":"<p><p>Talent identification and development are fundamental processes for cultivating high-performance athletes in sport. However, these processes remain insufficiently understood in regions such as the Middle East, Africa, Latin America, the Caribbean, Pacific Oceania, and Asia. These areas often face challenges including limited infrastructure, resource constraints, and sociocultural barriers, which complicate the identification and nurturing of emerging talent. This study employs a qualitative approach, drawing on insights from semi-structured interviews with a sample composed of the ten development officers from the International Tennis Federation (ITF) who are based in these regions. Reflective thematic analysis was used to identify four key factors: structures and systems, economic challenges, access, and support influencing the effectiveness of developmental systems. By examining the nuanced interactions between these factors, the study identifies key obstacles and facilitators within these regions. The findings offer practical recommendations to improve talent pathways and ensure a more equitable distribution of opportunities. This work contributes to ongoing discussions in sports science, emphasising the need for inclusive and context-sensitive approaches to athlete development in underrepresented areas of the global tennis landscape.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-11"},"PeriodicalIF":2.5,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145251302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mathéo Maurin, Chloé Leprince, Christopher Carling, Jean-Philippe Lachaux, Guillaume Martinent
{"title":"Which factors disrupt football players' concentration? A qualitative investigation into the opinions of national youth team coaches.","authors":"Mathéo Maurin, Chloé Leprince, Christopher Carling, Jean-Philippe Lachaux, Guillaume Martinent","doi":"10.1080/02640414.2025.2569238","DOIUrl":"https://doi.org/10.1080/02640414.2025.2569238","url":null,"abstract":"<p><p>The aim of this study was to identify the key situations during a football match that are most likely to disrupt the players' concentration. The twelve head coaches of all French national youth football teams were interviewed to obtain their expert views and identify the situations considered to have the most significant impact on match outcomes. Semi-structured interviews were conducted with the U15 to U20 men's and U15 to U23 women's head coaches. An inductive thematic analysis of the qualitative data was conducted to produce a structured categorisation of the situations described. In total, six main categories emerged from the data corpus: 1) match tempo (e.g. match interruptions), 2) individual factors (e.g. substitute role), 3) daily training (e.g. routine during the week), 4) context (e.g. match importance), 5) fatigue (e.g. end of match), and 6) situational factors (e.g. score status). The match tempo category should notably be examined in greater depth since it accounted for more than half of the elementary units of meaning cited by the coaches. These findings offer new perspectives for research by highlighting the need to explore the underlying attentional processes and to develop intervention programs to optimise players' concentration especially in these specific match situations.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-13"},"PeriodicalIF":2.5,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145251380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pablo Rozier-Delgado, Hervé Di Domenico, Baptiste Morel
{"title":"Evaluation of moderate to vigorous boundary under free-living conditions with accelerometry.","authors":"Pablo Rozier-Delgado, Hervé Di Domenico, Baptiste Morel","doi":"10.1080/02640414.2025.2568284","DOIUrl":"https://doi.org/10.1080/02640414.2025.2568284","url":null,"abstract":"<p><p>Daily moderate-to-vigorous physical activity (MVPA) evaluations based on absolute cutoffs from accelerometer data are inappropriate for characterising physical capacities, given inter-individual variability. We developed a new method that evaluates an individual's MVPA boundary without difficult exhaustion tests by estimating the critical intensity in daily activities using accelerometers. Thirty-five participants with varying fitness levels wore a 3-axis accelerometer for 3-6 weeks. They performed a sub-maximal incremental walking test on a 15%-inclined treadmill, where the speed at 4 mmol·L<sup>-1</sup> (S<sub>4 mM</sub>) was computed. A two-parameter critical intensity model was fitted to Dynamic Body Acceleration (DBA) records using quantile regression. The critical DBA (DBA<sub>C</sub>) was computed from this model and compared with the traditional absolute cutoff for MVPA. DBA<sub>C</sub> was a strong predictor of S<sub>4 mM</sub> (r<sup>2</sup> = 0.788) and, compared with individual characterisation, the traditional MVPA analysis resulted in a mean absolute error of 10:37 min/day (118%) and 12:07 min/day (26%) for time spent in vigorous and moderate activity, respectively. In conclusion, the individual DBA<sub>C</sub> computed from daily life activities without controlled laboratory tests accurately represents the severe intensity domain boundary. This method enhances the current absolute cutoff MVPA classification, which fails to accurately represent the time spent in intensity domains with individual physiological meanings.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-14"},"PeriodicalIF":2.5,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145251321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hua-Hui Qin, Jie-Jie Liu, Li-Wei Zhang, Ni-Sha Huang, Robert J Schinke, Yu-Feng Li, Yang Ge
{"title":"How is a champion made? - Insights from nine team China Olympic and world champion trampolinists.","authors":"Hua-Hui Qin, Jie-Jie Liu, Li-Wei Zhang, Ni-Sha Huang, Robert J Schinke, Yu-Feng Li, Yang Ge","doi":"10.1080/02640414.2025.2569254","DOIUrl":"https://doi.org/10.1080/02640414.2025.2569254","url":null,"abstract":"<p><p>This study was conceived to identify key factors contributing to the success of China's trampoline Olympic and world champions, specifically exploring how China's cultural context and unique sports system support their sustained success. Semi-structured interviews with nine Olympic and world champion trampolinists were analyzed using reflexive thematic analysis within a Confucian relationist framework, highlighting the relational nature of knowledge and interactions among psychological traits, training, and social contexts. Three interrelated themes were developed. (1) Social Support: Coaches provided technical guidance and psychological encouragement. Teammates fostered a balance of collaboration and competition. Families offered emotional support and stability. These elements underpinned a comprehensive social support system. (2) Behavioral Coping Strategies: Athletes relied on clear goal setting, scientific and reflective training, and adaptability in competitions to overcome challenges. (3) Psychological Adjustment: Emotional regulation, focus-oriented self-regulation and psychological conditioning were central to coping with the demands of high-pressure competition. These elements are interwoven, collectively shaping the athletes' developmental journey and emphasizing the need for an integrated training ecosystem to sustain championship performance.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-13"},"PeriodicalIF":2.5,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145251382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ageing in reverse? The accelerated performance gains of older female swimmers in age-group records.","authors":"S Demarie, F Guidotti, V L Billat","doi":"10.1080/02640414.2025.2571842","DOIUrl":"https://doi.org/10.1080/02640414.2025.2571842","url":null,"abstract":"<p><p>Recent Masters swimming trends defy perceptions of age-related performance deterioration, particularly in older women. Previous research has shown that as women age, they often narrow the gender performance gap in ultra-endurance sports. However, it has been argued that inherent physiological constraints will prevent women from exceeding men's absolute records in most sports. This study examines 2023 and 2024 FINA World Masters Championships data to see if women over 60 are progressing more than men relative to age-group world records. Using multivariate regression, PCA and cluster analysis, the findings indicate a significant effect of age on performance with a 0.16% move towards world records at each age-group increase, with a sharper increase in shorter distances; a significant Age × Sex interaction (coef = 0.109, p < 0.001), with older women demonstrating sharper performance gains than men. The findings confirm evidence that, while physiological deterioration is expected with ageing, some demographic groups, such as women over 60, show remarkable peaks of competitive performance especially in freestyle and backstroke events. In conclusion, this study adds human capital to age-related swimming performance studies. Whipp and Ward's (1992) hypothesis that the disparity in performance between sexes may diminish with increasing distance may become topical again when taking age-relative performance profiles into account.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-9"},"PeriodicalIF":2.5,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145251792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cameron M Josse, Jean-Benoit Morin, Kenneth P Clark, Joel T Greenshields, Aaron D Wellman
{"title":"Kinetics and kinematics of initial sprint acceleration performance in Division I collegiate American football players.","authors":"Cameron M Josse, Jean-Benoit Morin, Kenneth P Clark, Joel T Greenshields, Aaron D Wellman","doi":"10.1080/02640414.2025.2567779","DOIUrl":"https://doi.org/10.1080/02640414.2025.2567779","url":null,"abstract":"<p><p>This study collected the first direct measurements of the kinetic and kinematic variables associated with initial acceleration performance in American football players. 123 male NCAA Division I American football players performed one-to-two maximal sprints of 20-30-meters. Kinetics were derived from a linear motorised encoder and individual linear sprint force-velocity-power (FVP) profiles were calculated utilising a validated field method. Kinematics were derived from video images recorded in slow-motion. The first three steps, including the initial push-off, were used for analysis at the instants of toe-off and touchdown. Large to nearly perfect, significant relationships were obtained between maximal power and 10-meter time. The spatiotemporal variables with the strongest relationships to maximal power were contact time, takeoff and step velocity, and normalised flight length. At toe-off, the swing leg hip angle, stance leg thigh angle, and CM-toe distance had large relationships with maximal power. At touchdown, the shank angles of both the stance and swing leg and the stance leg knee angle had large relationships. Maximal power associated with force output in the horizontal direction may considered a key performance indicator for initial acceleration in American football and certain technical underpinnings are associated with higher levels of maximal power during initial sprint acceleration.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-14"},"PeriodicalIF":2.5,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145244796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ken Van Alsenoy, Derek Santos, Marietta Van der Linden, Joong Hyun Ryu, Lubna Al Raisi, Olivier Girard
{"title":"No effect of custom foot orthoses manufactured from EVA and/or TPU materials and sex on mechanical asymmetries during treadmill running in trained runners.","authors":"Ken Van Alsenoy, Derek Santos, Marietta Van der Linden, Joong Hyun Ryu, Lubna Al Raisi, Olivier Girard","doi":"10.1080/02640414.2025.2569246","DOIUrl":"https://doi.org/10.1080/02640414.2025.2569246","url":null,"abstract":"<p><p>We investigated the influence of custom foot orthoses and sex on mechanical asymmetries during treadmill running. Eighteen trained, injury-free individuals (9 females) ran six minutes at 10% below their first ventilatory threshold (average speed: 9.9 ± 1.3 km/h) on an instrumented treadmill under four footwear conditions: original shoe liner (control), two custom orthotics [EVA and TPU], and a hybrid (EVA heel, TPU forefoot). Vertical and antero-posterior ground reaction forces were recorded after ~5 minutes, encompassing 40 steps. Mechanical asymmetry was assessed using the 'symmetry angle' (SA) score. No significant main effects were found for condition (all P ≥ 0.302), sex (P ≥ 0.137), or condition × sex interactions (P ≥ 0.063). Mean SA scores were <2% for contact time (0.39 ± 0.23%), flight time (1.90 ± 1.35%), step frequency (0.34 ± 0.26%), peak vertical force (1.44 ± 1.15%), and mean vertical loading rate (1.79 ± 1.17%). Vertical and leg stiffness had SA scores of 3.11 ± 1.73% and 1.86 ± 1.00%. For braking (1.56 ± 0.78%) and push-off (1.54 ± 0.81%) phases, and peak braking (2.94 ± 1.61%) and push-off (2.33 ± 1.17%) forces, SA scores ranged from ~1.5-3.0%. Both sexes exhibited even strides, with orthoses not affecting natural asymmetries. Orthoses of similar shape but different materials are unlikely to alter gait symmetry, suggesting unilateral assessments may suffice and reduce testing demands.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-12"},"PeriodicalIF":2.5,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145238993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
David Gschneidner, Luke Carlson, James Steele, James P Fisher
{"title":"The effects of lengthened-partial range of motion resistance training of the limbs on arm and thigh muscle area: A multi-site randomised trial.","authors":"David Gschneidner, Luke Carlson, James Steele, James P Fisher","doi":"10.1080/02640414.2025.2567805","DOIUrl":"https://doi.org/10.1080/02640414.2025.2567805","url":null,"abstract":"<p><p>This project represents a highly powered pre-registered comparison of full ROM (fROM) and 'lengthened partial' ROM (lpROM) resistance training [RT]. A randomized controlled cluster trial across 15 sites was employed. The outcomes were muscle cross sectional area (CSA) of the upper arm and thigh, and strength for chest press, leg press, and pulldown. Pre-testing preceded randomization to either the lpROM (<i>n</i> = 163) or fROM (<i>n</i> = 134) RT condition. Post-testing was completed following a 12-week intervention. Our primary estimand of interest was the condition by time interaction. The estimate for this effect for arm estimated muscle CSA was -0.032 and for thigh estimated muscle CSA was 0. The <i>p</i>-values for equivalence were <i>p</i> = 0.071 for the arm muscle, and <i>p</i> = 0.019 for the thigh muscle. Inference criteria with alpha were set at 0.01 and adjusted to 0.005 for multiple outcomes, as such, we were unable to reject the null hypothesis that the condition:time interaction effect was outside of the SESOI [-0.1, 0.1]. Exploratory analysis suggests that both the main effects of time, and any interaction effects for condition by time, are likely small. These findings support previous evidence comparing fROM and lpROM specifically and suggest that between condition effects are small and practically equivalent.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-14"},"PeriodicalIF":2.5,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145238964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bangda Hu, David Fletcher, Sophia Jowett, Rachel Arnold
{"title":"Paradoxical leadership, athlete well-being, and performance satisfaction: The mediating role of the coach-athlete relationship.","authors":"Bangda Hu, David Fletcher, Sophia Jowett, Rachel Arnold","doi":"10.1080/02640414.2025.2569233","DOIUrl":"https://doi.org/10.1080/02640414.2025.2569233","url":null,"abstract":"<p><p>Few studies have regarded coaches' behaviour as two ends of a continuum in investigating their leadership. This study employed a continuum perspective, investigating the links between coaches' paradoxical leadership, athlete well-being, performance satisfaction, and the coach-athlete relationship. A total of 279 athletes (male = 150, female = 129; <i>M</i><sub>age</sub> = 20.76, <i>SD</i> = 1.96) who engaged in various sports participated in this study, which required participants to complete an online, multi-section questionnaire. Structural equation modelling (SEM) was employed for data analysis. The analysis indicated positive and significant paths (β ranging from .40 to .79) between paradoxical leadership and athlete well-being, performance satisfaction, as well as the coach-athlete relationship. The bootstrap approach suggested that the coach-athlete relationship explained the relationship between paradoxical leadership and athlete well-being as well as performance satisfaction (β ranging from .34 to .75; 95% CIs excluded the number zero). The results suggested that paradoxical behaviours have a significant role in supporting athletes, through which the coach could create a quality microenvironment with the athlete, contributing to both well-being and performance satisfaction. This study directly examined paradoxical leadership and its relationship with athletes' outcomes, which has significant implications for the knowledge of fluctuations in leadership.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-11"},"PeriodicalIF":2.5,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145244750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}