Sports Biomechanics最新文献_第4页

Validating a generative AI-assisted pose refinement framework for kinematic analysis in elite taekwondo athletes. 优秀跆拳道运动员运动学分析的生成式人工智能辅助姿态优化框架验证。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-18 DOI: 10.1080/14763141.2026.2716360

Yi-Zhen Yang, Jui-Chung Hung, Hsin-Yi Zheng

{"title":"Validating a generative AI-assisted pose refinement framework for kinematic analysis in elite taekwondo athletes.","authors":"Yi-Zhen Yang, Jui-Chung Hung, Hsin-Yi Zheng","doi":"10.1080/14763141.2026.2716360","DOIUrl":"https://doi.org/10.1080/14763141.2026.2716360","url":null,"abstract":"This study evaluated a Generative AI-Assisted Pose Refinement Framework integrating Large Language Models (LLM) and Retrieval-Augmented Generation (RAG) to enhance markerless motion capture accuracy in elite Taekwondo kyorugi athletes. Eight elite athletes (age: 21.1 ± 0.9 yrs) underwent a 12-week training macrocycle. Kicking kinematics were recorded using MediaPipe Pose, with the LLM-RAG system developed to detect and correct anatomical outliers based on biomechanical constraints. Results indicated that the framework successfully identified 10.37% of keypoints as outliers, improving detection accuracy by 5.69% to 13.24% compared to raw MediaPipe estimates. Furthermore, the refined data effectively captured individualised performance adaptations following the intervention: five athletes demonstrated significant improvements in stability (with the coefficient of variation (CV) for speed decreasing by up to 39.66%), one maintained performance, and two exhibited increased variability, validating the system's sensitivity to longitudinal training effects. This approach significantly enhances the reliability of markerless tracking for high-velocity movements, providing a viable, field-based alternative for continuous biomechanical monitoring in applied sports settings.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-18"},"PeriodicalIF":2.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148800701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Foot orthoses alter kinematics in runners with patellofemoral pain: a statistical parametric mapping analysis. 足部矫形器改变跑步者髌骨疼痛的运动学：统计参数映射分析。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-17 DOI: 10.1080/14763141.2026.2701982

Hygor Ferreira-Silva, Eliane de Morais Machado, Cassius Iury Anselmo-E- Silva, Natália Duarte Pereira, Fábio Viadanna Serrao

{"title":"Foot orthoses alter kinematics in runners with patellofemoral pain: a statistical parametric mapping analysis.","authors":"Hygor Ferreira-Silva, Eliane de Morais Machado, Cassius Iury Anselmo-E- Silva, Natália Duarte Pereira, Fábio Viadanna Serrao","doi":"10.1080/14763141.2026.2701982","DOIUrl":"https://doi.org/10.1080/14763141.2026.2701982","url":null,"abstract":"Clinical guidelines recommend foot orthoses for patients with patellofemoral pain (PFP) and excessive subtalar pronation. Although Statistical Parametric Mapping (SPM) is established for analysing continuous kinematic waveforms in biomechanics, foot orthoses research in PFP frequently relies on discrete variables (e.g. peak angles). Applying SPM allows detailed assessment of movement adaptations throughout the stance phase that isolated data points may overlook. This study evaluated the immediate effects of medially wedged orthoses on lower limb kinematics, pain, and self-perceived improvement in runners with PFP. Thirty participants (15 men/15 women) ran under two conditions: original shoe insoles (control) and 4° medially wedged orthoses (intervention). Rearfoot, tibial, and femoral 3D kinematics were analysed using SPM. Compared with control, orthoses reduced rearfoot eversion (18-81% stance, p = 0.007), tibial internal rotation (40-84%, p < 0.001), and increased femoral adduction (23-47%, p = 0.011). Acute pain remained unchanged (p = 0.940), but more runners reported self-perceived improvement (p = 0.031). SPM identified time-specific alterations missed by discrete analyses. Medially wedged orthoses reduce distal rotations while increasing proximal adduction. Greater self-perceived improvement suggests short-term clinical benefits despite no immediate pain reduction. .","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-19"},"PeriodicalIF":2.0,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148761278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-14 DOI: 10.1080/14763141.2026.2715648

Meixi Pan, Jin Teng, Wei Luo, Yijie Wang, Siqin Shen

{"title":"Surface-related differences in lower-limb biomechanics during running on concrete and artificial turf using OpenSim.","authors":"Meixi Pan, Jin Teng, Wei Luo, Yijie Wang, Siqin Shen","doi":"10.1080/14763141.2026.2715648","DOIUrl":"https://doi.org/10.1080/14763141.2026.2715648","url":null,"abstract":"Surface-related alterations in joint loading during trail running remain unclear. Twenty male recreational rearfoot-strike runners performed overground running at 3.3 m/s on concrete and artificial turf. Three-dimensional kinematics, ground reaction forces (GRFs), and surface electromyography (sEMG) were recorded. An OpenSim Gait2392 model combined with Static Optimisation and Joint Reaction Analysis was used to estimate ankle, knee, and hip joint reaction forces (JRFs). Vertical and anteroposterior GRFs and vertical JRF peaks showed no significant differences between surfaces. However, the concrete surface yielded larger mediolateral GRF magnitudes (p < 0.001) and higher peak anterior ankle JRF (p = 0.049). Exploratory analyses indicated potential differences in knee and ankle mechanics, but these did not survive false discovery rate correction. Under speed-controlled running conditions, surface type had limited effects on vertical GRF and proximal joint loading. Adaptations to different surfaces appear to occur mainly through distal mechanical adjustments, particularly at the ankle and in mediolateral force control. .","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-20"},"PeriodicalIF":2.0,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148763274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Measuring a pirouette: examining the validity of biomechanical measures for double pirouette performances. 测量单脚旋转：检查双单脚旋转表演的生物力学措施的有效性。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-12 DOI: 10.1080/14763141.2026.2676131

Catherine Haber, Luke Hopper, Andrea Schärli

{"title":"Measuring a pirouette: examining the validity of biomechanical measures for double pirouette performances.","authors":"Catherine Haber, Luke Hopper, Andrea Schärli","doi":"10.1080/14763141.2026.2676131","DOIUrl":"https://doi.org/10.1080/14763141.2026.2676131","url":null,"abstract":"Pirouette performance has been widely analysed biomechanically, with performance quantified by disparate measures. Therefore, this study examined the criterion validity of biomechanical measures in relation to expert ratings of balanced pirouette performance, and secondarily, dancers' subjective performance evaluations. Forty-nine dancers performed a collective 353 double pirouettes recorded with 3D motion capture. Dancers rated their own performance on a scale from 1 to 10. Following, kinematic data were used to create stick-figure videos, which three experts rated for balance performance on a scale of 1 to 6. Expert rating reliability was assessed with an Intraclass Correlation (ICC). Correlations were calculated between 16 kinematic measures and (1) expert observers' ratings of balance performance and (2) dancers' subjective ratings of overall performance. Overall, there was strong agreement among experts (ICC = 0.92). Dancer and expert ratings most strongly correlated with the pathlength of the supporting foot over the whole pirouette (rs-dancer = -0.59, rs-expert = -0.65). Interestingly, total degrees of trunk rotation-a common field measure-did not significantly relate to expert or dancer ratings. Rather, supporting foot displacement was the strongest field-based correlate (rs-dancer = -0.50, rs-expert = -0.50). These findings thus provide a basis for selecting kinematic measures that reflect practitioner evaluations and underlying biomechanical principles of pirouette performance.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-18"},"PeriodicalIF":2.0,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148714264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Pumping technique of elite iQfoil windsurfers in ecological settings. 精英iQfoil帆板运动员在生态环境中的抽气技术。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-11 DOI: 10.1080/14763141.2026.2715644

Raz Margi, Moran Tapiro, Tomer Yona, Yigal Evron, Arielle G Fischer

{"title":"Pumping technique of elite iQfoil windsurfers in ecological settings.","authors":"Raz Margi, Moran Tapiro, Tomer Yona, Yigal Evron, Arielle G Fischer","doi":"10.1080/14763141.2026.2715644","DOIUrl":"https://doi.org/10.1080/14763141.2026.2715644","url":null,"abstract":"Windsurfing pumping is a key manoeuvre in the Olympic iQFOiL class, yet its on-water biomechanics and coordination remain undescribed. This exploratory study quantified in situ kinematics and inter-element coordination during upwind pumping in seven elite windsurfers. A board-mounted camera recorded 36 race-pace upwind pumping sequences, and OpenPose-based markerless motion capture was used to estimate centre of mass (COM), knee and trunk angles, and COM-to-sail (CTS) and COM-to-board (CTB) distances. We conducted laboratory validation trials of the pumping motion to compare the markerless approach with a marker-based motion capture system. Field data showed large ranges of motion in the knee (58.8 ± 12.0°), trunk (37.1 ± 10.8°), CTS (16.1 ± 4.0 %H; % of body height) and CTB (10.9 ± 3.0 %H). Cross-correlation analysis revealed synchronous coordination between CTS, knee and trunk (lags < 5% of the cycle) and antiphase coordination between CTS and CTB. Together, these findings identify a whole-body pumping strategy in which knee and trunk motion are tightly coordinated to drive CTS and provide quantitative targets for coaching, simulator design and lab to field integration.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-19"},"PeriodicalIF":2.0,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148708228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Elbow extension-trunk rotation ratio during early acceleration is associated with biomechanical efficiency in division III collegiate baseball pitchers. 早期加速时肘部伸展-躯干旋转比与三级大学棒球投手的生物力学效率有关。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-11 DOI: 10.1080/14763141.2026.2716363

Jeffrey Paskewitz, Philip Malloy, Philip McClure, Alexis Austin, Ryan Zarzycki

{"title":"Elbow extension-trunk rotation ratio during early acceleration is associated with biomechanical efficiency in division III collegiate baseball pitchers.","authors":"Jeffrey Paskewitz, Philip Malloy, Philip McClure, Alexis Austin, Ryan Zarzycki","doi":"10.1080/14763141.2026.2716363","DOIUrl":"https://doi.org/10.1080/14763141.2026.2716363","url":null,"abstract":"Trunk-arm coordination influences throwing-arm torques in baseball pitching, yet quantitative descriptions of coordinated trunk-arm motion are lacking. This study described trunk-arm coordination during pitching using joint excursion ratios and clarified the relationships between joint excursion ratios and biomechanical efficiency. 18 Division III college baseball pitchers underwent markerless motion capture, from which four joint excursion ratios and throwing-arm torques were calculated. Pearson coefficients described associations between joint excursion ratios and throwing-arm torques normalised by height, mass, and ball velocity. Multivariable linear regression models predicting raw throwing-arm torques and containing mass and each significantly correlated joint excursion ratios as predictors were compared to univariable models containing mass alone. Significant associations were observed between elbow extension/trunk rotation (EETR) ratio and normalised peak elbow (r = -0.47, p = 0.045) and peak shoulder (r = -0.51, p = 0.025) torques. Addition of EETR ratio explained 16% greater variance in raw shoulder external rotation torque/ball velocity and 13% greater variance in raw elbow valgus torque/ball velocity than mass alone. This study suggests EETR ratio during the first half of the acceleration phase is associated with biomechanical efficiency.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-15"},"PeriodicalIF":2.0,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148708199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Anti-movement core training modulates abdominal antagonist co-activation and enhances trunk rotational kinematics in amateur golfers. 反运动核心训练调节腹部拮抗剂共同激活和提高躯干旋转运动学在业余高尔夫球手。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-10 DOI: 10.1080/14763141.2026.2712637

Shuyuan Wu, Guojie Zhang, Yan Shi, Genghao Zhan, Huaxing Zhang, Xiangyu Wang, Hao Wu

{"title":"Anti-movement core training modulates abdominal antagonist co-activation and enhances trunk rotational kinematics in amateur golfers.","authors":"Shuyuan Wu, Guojie Zhang, Yan Shi, Genghao Zhan, Huaxing Zhang, Xiangyu Wang, Hao Wu","doi":"10.1080/14763141.2026.2712637","DOIUrl":"https://doi.org/10.1080/14763141.2026.2712637","url":null,"abstract":"This randomised controlled trial investigated the effects of an 8-week anti-movement core training programme on phase-specific abdominal antagonist co-activation (CoA) and thorax-pelvis kinematics in amateur golfers. Participants were randomly allocated to an Experimental group (EXP, anti-movement core training), a traditional core training group (TCP), or a control group (CON). Training groups completed supervised sessions three times per week. Surface electromyography of the external oblique and 3D kinematics were recorded during the golf swing pre- and post-intervention. Results revealed that the EXP group demonstrated a unique phase-specific CoA modulation: significant preparatory increases during the takeaway and backswing, followed by rapid downregulation during the early downswing, which differed significantly from TCP (p < 0.05). While both EXP and TCP improved clubhead speed, only EXP significantly increased peak X-factor velocity and peak thorax rotational velocity (p < 0.05). Pelvic rotational velocity remained unchanged. Compared with traditional core training, anti-movement core training was associated with greater phase-specific modulation of external oblique co-activation and greater improvements in rotational kinematic variables. These findings suggest that incorporating multi-planar anti-movement core exercises may be a useful approach for improving trunk movement coordination and golf swing performance in amateur golfers.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-19"},"PeriodicalIF":2.0,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148702692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Inter-system differences in modelling approaches for shoulder joint kinematics between markerless and marker-based motion capture during baseball pitching. 棒球投球过程中无标记和基于标记的运动捕捉肩关节运动学建模方法的系统间差异。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-05 DOI: 10.1080/14763141.2026.2711093

Tomoya Uchida, Tomoyuki Matsuo, Takuya Nakamura, Izumi Nishizawa, Jun Sakata, Kanta Matsuzawa, Tatsuhiro Suzuki, Tadahiro Sakai

{"title":"Inter-system differences in modelling approaches for shoulder joint kinematics between markerless and marker-based motion capture during baseball pitching.","authors":"Tomoya Uchida, Tomoyuki Matsuo, Takuya Nakamura, Izumi Nishizawa, Jun Sakata, Kanta Matsuzawa, Tatsuhiro Suzuki, Tadahiro Sakai","doi":"10.1080/14763141.2026.2711093","DOIUrl":"https://doi.org/10.1080/14763141.2026.2711093","url":null,"abstract":"Comparative data on markerless motion capture systems for upper-extremity kinematics during high-speed movements remain limited. We aimed to examine inter-system modelling differences in shoulder joint kinematics between a markerless motion capture system (Theia3D) and a marker-based system during baseball pitching, focusing on a wide range of shoulder joint motion throughout baseball pitching. Six collegiate pitchers completed 117 trials recorded simultaneously by both systems. Shoulder joint angles and joint centre positions were compared using nested Bland-Altman analysis, intraclass correlation coefficients (ICC (3,1)), and statistical parametric mapping (SPM). At maximum external rotation (MER), inter-system differences were small for external rotation (bias: -0.3°; ICC = 0.77), whereas the horizontal angle demonstrated a pronounced fixed bias (bias: -19.1°). At ball release (BR), inter-system differences increased across all joint angles, with the largest discrepancy for external rotation (bias: -8.5°; ICC = 0.33). Proportional bias was evident for most variables at BR. Between-participant variance exceeded within-participant variance at MER, indicating that participant-specific offsets were primary contributors to the limits of agreement. SPM identified significant inter-system differences during the acceleration phase. These findings highlight the importance of understanding the characteristics of each modelling approach for appropriate interpretation and application of markerless motion capture in overhead athletes.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-20"},"PeriodicalIF":2.0,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148674515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 handheld dumbbell load on force-time characteristics during countermovement jumps with accentuated eccentric loading in youth athletes. 手持哑铃负荷对青少年运动员偏心负荷加重的反动作跳跃力-时间特性的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-01 Epub Date: 2026-02-20 DOI: 10.1080/14763141.2026.2623454

Thomas E Bright, Jason Lake, Matthew J Handford, Nicola Theis, Matthew Ellis, Peter Mundy, Jonathan D Hughes

{"title":"Effects of handheld dumbbell load on force-time characteristics during countermovement jumps with accentuated eccentric loading in youth athletes.","authors":"Thomas E Bright, Jason Lake, Matthew J Handford, Nicola Theis, Matthew Ellis, Peter Mundy, Jonathan D Hughes","doi":"10.1080/14763141.2026.2623454","DOIUrl":"10.1080/14763141.2026.2623454","url":null,"abstract":"The purpose of this study was to examine the effects of handheld dumbbell load on force-time characteristics during countermovement jumps with accentuated eccentric loading (CMJAEL). Nineteen youth athletes (9 males and 10 females; age 15 ± 2 years; stature 1.66 ± 0.09 m; body mass 54.8 ± 8.4 kg) performed bodyweight CMJs (CMJBW) followed by CMJAEL conditions at 20% (CMJAEL20) and 30% (CMJAEL30) of body mass. Vertical ground reaction force (vGRF) data were analysed using a combined forward and backward integration method to account for changes in system mass. Jump height increased in both CMJAEL conditions compared with CMJBW, with the greatest improvement during CMJAEL20. Propulsion time increased with load, while propulsion mean vGRF decreased, suggesting participants produced force over a longer duration to attain a greater jump height. Propulsion mean velocity and power increased under CMJAEL20 but changes were uncertain for CMJAEL30. Braking responses were inconsistent, as higher braking vGRF were not accompanied by meaningful changes in braking velocity or power. These findings suggest CMJAEL can acutely increase jump height; however, associated changes in force-time characteristics, particularly phase durations and velocities, should be considered, as they provide insight into how jump performance is achieved in response to AEL.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1200-1219"},"PeriodicalIF":2.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146229595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 repeatability and comparison of lower limb biomechanics between suspension, step-off and vertical jump landing tasks. 悬吊、步离和垂直起跳着陆任务下肢生物力学的重复性和比较。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-01 Epub Date: 2026-03-02 DOI: 10.1080/14763141.2026.2635987

Gerwyn Hughes, Hillary Nguyen, Amber Lyle, Logan Thoreson, Aryanna Martinez

{"title":"The repeatability and comparison of lower limb biomechanics between suspension, step-off and vertical jump landing tasks.","authors":"Gerwyn Hughes, Hillary Nguyen, Amber Lyle, Logan Thoreson, Aryanna Martinez","doi":"10.1080/14763141.2026.2635987","DOIUrl":"10.1080/14763141.2026.2635987","url":null,"abstract":"Research investigating landing biomechanics has used various tasks to ensure consistent/comparable conditions. This study examined repeatability of three landing tasks (suspension, step-off and vertical jump) and compared lower limb biomechanics between tasks. Twenty recreational athletes performed five trials in each task while 3D motion and ground reaction force (GRF) were recorded. Intraclass correlation coefficients (ICC) showed excellent repeatability in all landing tasks for peak knee kinematics and vertical velocity of the centre of mass (COM) at ground contact (ICCs: 0.92 - 0.98), good repeatability for vertical and posterior GRFs (ICCs: 0.72 - 0.86), but vertical jump landings had poor repeatability for sagittal plane knee kinetics (ICCs = 0.34 for peak extension moment and 0.27 for peak anterior shear force). Repeated measures ANOVA showed vertical and anterior-posterior velocity of the COM at ground contact to be significantly different between landing tasks (p < 0.001). Peak knee flexion angle was less in vertical jump landings compared to suspension (p = 0.003) and step-off (p < 0.001). Peak knee kinetics and GRFs were greater in step-off compared to suspension and vertical jump landings (p < 0.045). These findings suggest different landing types may not be directly comparable and landing task selection should be based on variables of interest and sports-specificity.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1269-1285"},"PeriodicalIF":2.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147327283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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