Journal of Sports Sciences最新文献_第7页

Associations between less knee kinematic variability and worse patient-reported outcomes following anterior cruciate ligament reconstruction. 前交叉韧带重建术后膝关节运动变异性较低与患者报告结果较差之间的关系。

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-11-08 DOI: 10.1080/02640414.2024.2425203

Jonathan Mo, Cortney Armitano-Lago, Elizabeth Bjornsen, Christin Büttner, Ashley Buck, Caroline Lisee, Adam W Kiefer, Brian Pietrosimone

{"title":"Associations between less knee kinematic variability and worse patient-reported outcomes following anterior cruciate ligament reconstruction.","authors":"Jonathan Mo, Cortney Armitano-Lago, Elizabeth Bjornsen, Christin Büttner, Ashley Buck, Caroline Lisee, Adam W Kiefer, Brian Pietrosimone","doi":"10.1080/02640414.2024.2425203","DOIUrl":"10.1080/02640414.2024.2425203","url":null,"abstract":"Individuals with anterior cruciate ligament reconstruction (ACLR) exhibit less knee kinematic variability while walking than uninjured controls, associated with deleterious changes in cartilage composition linked to an increased risk for early knee osteoarthritis (KOA). It is unknown whether less knee kinematic variability is also associated with worse knee-related patient-reported outcomes (PROs) consistent with KOA development. This study examined associations between kinematic variability during gait and PROs in individuals post-ACLR. Gait kinematics and the Knee Injury and Osteoarthritis Outcome Score (KOOS) were collected from 45 participants 6-months post-ACLR (67% Females; 21.45 ± 4.56 years). Overground gait biomechanics using 3D motion capture were collected, and knee kinematics were extracted for post-processing. Sample entropy (SampEn) was used to calculate knee kinematic variability. Pearson's product-moment correlations were conducted to determine the associations between SampEn and KOOS sub-scores. Additionally, independent samples t-tests were performed to evaluate potential differences in SampEn outcomes between individuals with and without clinically relevant symptoms (defined in the introduction). Less sagittal plane kinematic variability is associated with greater pain (r = 0.37, p = 0.01) and symptoms (r = 0.32, p = 0.03). Symptomatic participants demonstrated less sagittal plane knee kinematic variability compared to asymptomatic participants (p = 0.01). The findings suggest less variable gait patterns 6-months post-ACLR may be linked to KOA-related symptoms.","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2145-2152"},"PeriodicalIF":2.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142604813","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}

引用次数: 0

The role of ball path curvature in basketball shooting accuracy. 球路曲率在篮球投篮精度中的作用

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-11-02 DOI: 10.1080/02640414.2024.2422735

Nathan Slegers, Dave Love

{"title":"The role of ball path curvature in basketball shooting accuracy.","authors":"Nathan Slegers, Dave Love","doi":"10.1080/02640414.2024.2422735","DOIUrl":"10.1080/02640414.2024.2422735","url":null,"abstract":"During the shooting motion of a basketball, the path of the ball from the beginning of the lift to release follows an S-shaped trajectory. This study is the first to investigate how two distinctive features of the S-shaped ball path, the maximum curvature, κmax, and terminal curvature, σ, are associated with longitudinal accuracy. The sagittal plane ball path and curvature were found using Bezier curves for 31 professional male basketball athletes. Terminal release curvature had a very strong positive correlation to intra-individual release velocity standard deviation (r = 0.73, p < 0.001) indicating that shooters with straighter terminal ball paths had better longitudinal shooting accuracy. It was also observed that κmax coincided with the transition to the forward shooting motion and that players with higher κmax tend to have a clear two-part shooting style rather than a single fluid motion. A comparison between groups of good and poor shooters identified a mean difference in κmax of 7.9 m-1 (p < 0.001, 95% CI: 11.8-4.0 m-1) suggesting that good shooters typically have a higher κmax than poor shooters.","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2052-2060"},"PeriodicalIF":2.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564161","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}

引用次数: 0

Altered inter-segmental coordination in athletes with a history of concussion. 有脑震荡病史的运动员各节之间的协调性发生改变。

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-10-31 DOI: 10.1080/02640414.2024.2422736

Kristie Liu, Timothy C Y Chan, Timothy A Burkhart, Michael G Hutchison

引用次数: 0

Mediators of the association between physical activity and executive functions in primary school children. 小学生体育锻炼与执行功能之间关系的中介因素。

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-10-28 DOI: 10.1080/02640414.2024.2422203

Ran Bao, Angus A Leahy, David R Lubans, Thierno M O Diallo, Mark R Beauchamp, Jordan J Smith, Charles H Hillman, Levi Wade

{"title":"Mediators of the association between physical activity and executive functions in primary school children.","authors":"Ran Bao, Angus A Leahy, David R Lubans, Thierno M O Diallo, Mark R Beauchamp, Jordan J Smith, Charles H Hillman, Levi Wade","doi":"10.1080/02640414.2024.2422203","DOIUrl":"10.1080/02640414.2024.2422203","url":null,"abstract":"There is growing interest in identifying the mechanisms underpinning the effects of physical activity on executive functions (e.g. inhibitory control, cognitive flexibility) in children. Our study examined cardiorespiratory fitness, muscular fitness, and motor competence as potential mediators of this relationship. The study used baseline data from the Learning to Lead (L2L) cluster randomised controlled trial. In total, 675 children (7-11 years, 49.5% girls) completed measures of moderate-to-vigorous physical activity (MVPA), cardiorespiratory fitness, muscular fitness, motor competence, and executive functions. Structural equation modelling was used to examine the potential mediating roles of cardiorespiratory fitness, muscular fitness, and motor competence in the cross-sectional association between MVPA and executive functions. Cardiorespiratory fitness (β = 0.06, SE = 0.021, p = 0.004) partially mediated the association between MVPA and cognitive flexibility. Muscular fitness was a significant mediator of the association between MVPA and both inhibitory control (β = 0.03, SE = 0.014, p = 0.027) and cognitive flexibility (β = 0.06, SE = 0.021, p = 0.005). No significant mediated effects were found for motor competence. Our findings suggest cardiorespiratory and muscular fitness (but not motor competence) mediate the association between physical activity and executive functions in children.","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2029-2038"},"PeriodicalIF":2.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522222","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}

引用次数: 0

Plyometric training with additional load improves jumping performance and isokinetic strength parameters of knee extensors and flexors in young male soccer players. 带有额外负载的负重弹跳训练可提高年轻男子足球运动员的弹跳成绩以及膝关节伸屈肌的等速力量参数。

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-10-29 DOI: 10.1080/02640414.2024.2421663

Alireza Niknam, Maryam Koushkie Jahromi, Mohammad Hemmatinafar, Ahmad Reza Dehghani, Guillermo R Oviedo

{"title":"Plyometric training with additional load improves jumping performance and isokinetic strength parameters of knee extensors and flexors in young male soccer players.","authors":"Alireza Niknam, Maryam Koushkie Jahromi, Mohammad Hemmatinafar, Ahmad Reza Dehghani, Guillermo R Oviedo","doi":"10.1080/02640414.2024.2421663","DOIUrl":"10.1080/02640414.2024.2421663","url":null,"abstract":"This study investigated the effect of plyometric training with and without additional load on young male soccer players' jumping ability and isokinetic strength. Methods: In this randomized controlled trial, 39 U-17 male trained soccer players were randomly divided into plyometric training with additional load (PT+AL), plyometric training with just bodyweight (PTBW) and control (CON) groups. PT+AL and PTBW were performed for six weeks (2 days/week). Absolute peak torque (APT), relative peak torque (RPT), average peak torque (AvPT), time-to-peak torque (TPT), average rate of force development (AvRFD), vertical jump height (VJH), standing long jump (SLJ) and 15-second repeated jump tests (RJ15s) were assessed before and after the interventions. The findings showed that the performance of knee extensors in TPT-60°/s and AvRFD-60°/s, and knee flexors in APT-60°/s, RPT-60°/s, AvPT-60°/s, AvPT-120°/s, AvRFD-60°/s and AvRFD-120°/s significantly increased after PT+AL, compared to the CON (p < 0.05). Also, a significant improvement in jumping ability was observed in PT+AL compared to CON (p < 0.05). Additionally, PTBW also improved the performance of knee flexors in TPT-120°/s and AvRFD-120°/s, as well as RJ15s performance compared to the CON (p < 0.05). Furthermore, knee flexors AvRFD-60°/s increased significantly after PT+AL, compared to PTBW (p < 0.05). SO, plyometric training, with or without additional load, improved young male soccer players' strength and jumping ability. However, strength parameters - especially the rate of force development - showed a greater increase following PT + AL compared to PTBW.","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1986-2004"},"PeriodicalIF":2.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142546114","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}

引用次数: 0

What gaps exist in biomechanics and motor control research in Paralympic sports? A scoping review focussed on performance and injury risk. 残奥运动的生物力学和运动控制研究存在哪些差距？以成绩和受伤风险为重点的范围界定审查。

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-11-11 DOI: 10.1080/02640414.2024.2415214

Robert Lee, Ross A Pinder, David S Haydon, Lachlan M Winter, Robert G Crowther

{"title":"What gaps exist in biomechanics and motor control research in Paralympic sports? A scoping review focussed on performance and injury risk.","authors":"Robert Lee, Ross A Pinder, David S Haydon, Lachlan M Winter, Robert G Crowther","doi":"10.1080/02640414.2024.2415214","DOIUrl":"10.1080/02640414.2024.2415214","url":null,"abstract":"In Paralympic sport, athletes, coaches and administrators seek medal-winning outcomes. Research in the fields of biomechanics and motor control can support the quantification of performance measures and injury risk. The aim of this article is to review the state of existing research and identify gaps offering researchers and practitioners targeted paths for creating competitive advantages. This review follows the Preferred Reporting Items for Systematic Reviews and Meta-Analysis extension for Scoping Reviews (PRISMA-ScR). Four electronic databases were searched in accordance with selected terms and inclusion/exclusion criteria. A custom data charting matrix was used to identify relevant characteristics. From the 3363 retrieved articles, 237 studies covering 24 Paralympic sports were included. A new metric, medal events per included study (MEPIS), was developed. Research gaps were identified in the sports studied, impairment types, gender balance, the injury reduction process, and the application of motor control research, leading to suggested directions targeting Paralympic success.","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2073-2082"},"PeriodicalIF":2.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622774","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}

引用次数: 0

The influence of scanning behaviour on performance during 4v4 small-sided games in youth female football. 在青少年女子足球 4v4 小范围比赛中，扫描行为对成绩的影响。

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-10-29 DOI: 10.1080/02640414.2024.2421662

Mirjam Hintermann, Michael Romann, Jürg Schmid, Wolfgang Taube, Jörg Fuchslocher

{"title":"The influence of scanning behaviour on performance during 4v4 small-sided games in youth female football.","authors":"Mirjam Hintermann, Michael Romann, Jürg Schmid, Wolfgang Taube, Jörg Fuchslocher","doi":"10.1080/02640414.2024.2421662","DOIUrl":"10.1080/02640414.2024.2421662","url":null,"abstract":"Scanning is an important perceptual skill that enables football players to gather information about opponents, teammates and the environment in real-time. This study investigated scanning before and during ball possession and its effect on the success of the subsequent action in U19 female footballers. Sixty-one elite and grassroots players (age: 16.7 ± 1.4) were recruited and analysed during 4v4 small-sided games. A total of 2010 game situations were video recorded for subsequent manual tagging. Multilevel logistic regression models revealed that elite players performed significantly more scans prior to first ball contact than their grassroots counterparts, but the number of scans performed during ball possession did not differ between competition levels. Furthermore, scans before and during ball possession positively influenced player's performance, whereas opponent pressure negatively influenced the success of subsequent actions, regardless of competition level. Differentiating between various subsequent actions revealed that scans before ball possession had a positive effect on the success of dribblings and passes, whereas scans during ball possession only had a positive effect on dribblings. Our results underline the importance of scanning in youth female football. These findings should be considered by coaches in the long-term development of players to increase the level of performance at elite age.","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1977-1985"},"PeriodicalIF":2.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142546115","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}

引用次数: 0

Evaluation of a time-varying cut-off frequency low-pass filter for assessing knee joint moments and ACL injury risk. 评估用于评估膝关节力矩和前十字韧带损伤风险的时变截止频率低通滤波器。

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-11-05 DOI: 10.1080/02640414.2024.2422724

Simon Augustus, Blake Rivers, James Brouner, Neal Smith

{"title":"Evaluation of a time-varying cut-off frequency low-pass filter for assessing knee joint moments and ACL injury risk.","authors":"Simon Augustus, Blake Rivers, James Brouner, Neal Smith","doi":"10.1080/02640414.2024.2422724","DOIUrl":"10.1080/02640414.2024.2422724","url":null,"abstract":"Conventional low-pass filtering of 3D motion capture signals prior to estimating knee joint moments and ACL injury risk has known limitations. This study aimed to evaluate the fractional Fourier filter (FrFF), which employs a time-varying cut-off frequency, for assessing peak knee moments during common ACL injury risk screening tasks. Ground reaction force and motion data were collected from 23 team sport athletes performing 45° unanticipated sidesteps and drop jumps. Peak knee abduction, internal rotation and non-sagittal moments were estimated using inverse dynamics after five different low-pass filter approaches were applied (FrFF vs. four variations of a fourth-order Butterworth filter). The FrFF produced peak knee moments larger than \"matched\" (i.e. force and motion cut-off frequencies were equivalent) and closer to \"unmatched\" (i.e. force and motion cut-offs were different) Butterworth filter approaches and removed problems with representing foot-to-ground impact peaks. Participants with larger peak moments were identified as \"at risk\" of injury irrespective of filter approach, but the FrFF identified \"at risk\" classifications conventional approaches did not. Preliminary evidence suggests that the FrFF displays enhanced sensitivity to movement strategies that induce high knee loads. This was most evident for sidestepping, with more research warranted to optimise the FrFF for drop jumps.","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2039-2051"},"PeriodicalIF":2.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142582900","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}

引用次数: 0

Effects of chronic betaine supplementation on exercise performance: Systematic review and meta-analysis. 长期补充甜菜碱对运动表现的影响：系统回顾和荟萃分析。

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-11-08 DOI: 10.1080/02640414.2024.2423578

Emilia Zawieja, Steven Machek, Nelo Eidy Zanchi, Jason Cholewa, Małgorzata Woźniewicz

{"title":"Effects of chronic betaine supplementation on exercise performance: Systematic review and meta-analysis.","authors":"Emilia Zawieja, Steven Machek, Nelo Eidy Zanchi, Jason Cholewa, Małgorzata Woźniewicz","doi":"10.1080/02640414.2024.2423578","DOIUrl":"10.1080/02640414.2024.2423578","url":null,"abstract":"Betaine supplementation, a dietary practice that possesses potential effects on exercise performance, has undergone extensive study. This study aimed to systematically review and meta-analyse betaine supplementation's effects on exercise performance. We searched PubMed, Web of Science, Scopus, and Google Scholar, focusing on studies comparing chronic betaine to a placebo in healthy humans aged 15-60 years, measuring exercise outcomes. Studies with acute betaine supplementation, no control group, or animals were excluded. Quality assessment was done using the Cochrane Risk of Bias Tool, and a random-effects model was employed for the meta-analysis. The review included 17 studies with 317 participants (21% female). The results revealed a significant effect size of 0.47 (95% CI 0.04 to 0.89) for maximal strength (1RM, 3RM, maximal isokinetic or isometric force), particularly in the lower body (SMD: 0.49, 95% CI 0.01 to 0.98). No significant effects were found for upper body strength, cycling sprint power, bench press throws power, or muscular endurance. However, vertical jumping performance improved significantly (SMD: 0.36, 95% CI 0.03 to 0.69) after excluding a low-quality study. In conclusion, betaine supplementation for at least 7 days significantly enhances muscular strength, especially lower body strength, and shows potential in improving vertical jumping performance.","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2131-2144"},"PeriodicalIF":2.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142604780","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}

引用次数: 0

Correction. 更正。

IF 2.3 2区医学

Journal of Sports Sciences Pub Date : 2024-11-01 Epub Date: 2024-11-10 DOI: 10.1080/02640414.2024.2422207

引用次数: 0