Sports Biomechanics最新文献_第3页

Individuals with unilateral chronic ankle instability exhibit deficits in bilateral postural control, muscle strength and proprioception. 单侧慢性踝关节不稳定的个体表现出双侧姿势控制、肌肉力量和本体感觉的缺陷。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-09-01 Epub Date: 2026-03-15 DOI: 10.1080/14763141.2026.2643338

Yujing Cao, Qi Wang, Yanhao Liu, Xinmeng Zhang, Wenqi Ran, Junjun Li, Wen Jing, Qipeng Song

{"title":"Individuals with unilateral chronic ankle instability exhibit deficits in bilateral postural control, muscle strength and proprioception.","authors":"Yujing Cao, Qi Wang, Yanhao Liu, Xinmeng Zhang, Wenqi Ran, Junjun Li, Wen Jing, Qipeng Song","doi":"10.1080/14763141.2026.2643338","DOIUrl":"10.1080/14763141.2026.2643338","url":null,"abstract":"To investigate whether people with unilateral chronic ankle instability (CAI) have deficits in bilateral static and dynamic postural control, ankle muscle strength and ankle proprioception. A total of 31 participants with CAI and 31 non-CAI controls were recruited. Static postural control was assessed using root mean square (RMS) of the plantar centre of pressure (CoP) displacements during single-leg stance. Dynamic postural control was evaluated by measuring the time to stabilisation (TTS) following a single-leg drop onto a force plate. Ankle proprioception and muscle strength were measured using a proprioception testing device and an isokinetic dynamometer. A linear mixed-effects model of variance was used to examine the group (CAI vs. non-CAI) and limb (affected vs. unaffected) effects and interactions adjusting for activity level, limb dominant and injured side. Compared to non-CAI, those participants with unilateral CAI exhibited greater CoP-RMS(ML) bilaterally (F = 4.392, p = 0.0038); longer TTS bilaterally (4.102 ≤ F ≤ 10.558, 0.002 ≤ p ≤ 0.048); less ankle muscle strength bilaterally (43.126 ≤ F ≤ 5.505, 0.022 ≤ p < 0.001); and larger ankle proprioceptive thresholds bilaterally (26.159 ≤ F ≤ 8.413, 0.005 ≤ p < 0.001). Individuals with unilateral CAI exhibit bilateral deficits in static postural control, dynamic postural control, muscle strength and proprioception. CAI rehabilitation strategies should adopt comprehensive bilateral rehabilitation approaches.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1377-1394"},"PeriodicalIF":2.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147464044","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

Time-course of physiological and biomechanical responses to a single bout of high-volume exercise in recreational cyclists. 休闲骑自行车者单次大运动量运动的生理和生物力学反应的时间过程。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-09-01 Epub Date: 2026-03-17 DOI: 10.1080/14763141.2026.2643778

Rodrigo Bini, Michael I C Kingsley, Blake E G Collins, Brett A Gordon, Daniel W T Wundersitz

{"title":"Time-course of physiological and biomechanical responses to a single bout of high-volume exercise in recreational cyclists.","authors":"Rodrigo Bini, Michael I C Kingsley, Blake E G Collins, Brett A Gordon, Daniel W T Wundersitz","doi":"10.1080/14763141.2026.2643778","DOIUrl":"10.1080/14763141.2026.2643778","url":null,"abstract":"As participation in ultra-long cycling events grows among recreational athletes, there remains a gap in understanding the physiological and biomechanical responses during prolonged exercise. The aim of this study was to investigate the time-course of physiological and biomechanical responses during high-volume cycling. Ten recreational cyclists (12 [range 4-50] years of experience) participated in a repeated measure cohort study. Participants performed up to 6 h of cycling at ~80% heart rate reserve. Objective and subjective measurements were taken hourly and included pelvis and lower limb motion, power output (PO), cadence, heart rate (HR) and rating of perceived exertion (RPE). Data were compared between the Start, Mid and End time points. No significant changes were observed in pelvic or lower limb joint angles. HR, PO, cadence and work remained stable. However, RPE increased significantly from Start to Mid (p = 0.02, d = 1.59) and Start to End (p < 0.01, d = 2.37), indicating large increases in perceived exertion. Recreational cyclists maintained consistent pelvic and lower limb biomechanics during 6 h of high-volume cycling. These findings suggest movement profile is preserved even as subjective exertion intensifies, indicating that fatigue did not interfere with cycling performance.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1395-1407"},"PeriodicalIF":2.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147500453","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 function affects pitching motion: players with floating toes show inconsistent pitching motion. 脚部功能影响投球动作：浮趾球员的投球动作不一致。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-09-01 Epub Date: 2026-03-10 DOI: 10.1080/14763141.2026.2638941

Hideaki Nagamoto, Takumi Okunuki, Kazuki Wakamiya, Toshihiro Maemichi, Toshimi Aizawa, Toshimasa Yanai, Tsukasa Kumai

{"title":"Foot function affects pitching motion: players with floating toes show inconsistent pitching motion.","authors":"Hideaki Nagamoto, Takumi Okunuki, Kazuki Wakamiya, Toshihiro Maemichi, Toshimi Aizawa, Toshimasa Yanai, Tsukasa Kumai","doi":"10.1080/14763141.2026.2638941","DOIUrl":"10.1080/14763141.2026.2638941","url":null,"abstract":"The purpose of this study was to evaluate how floating toes affect baseball pitching motion. Fifteen young male baseball players pitched from a pitching mound after physical examination, including floating toes, determining if any toes are not in contact with the ground. At least 20 pitches were thrown and the 10-best pitches were selected for the analysis. Images of the ball release point for sagittal and coronal views were captured from the videos recording the pitching motion. The positions of the ball, wrist, and leading foot were measured and the variability of each position over the 10 pitches was expressed as a standard deviation (SD). Each SD between the players with and without floating toes was statistically compared. The prevalence of floating toes on the pivot and plant foot was 47% and 33%, respectively. Those with floating toes on the pivot foot showed significantly greater SD in the antero-posterior position on the ball, wrist, and leading foot at ball release (p = 0.04, 0.02, and 0.01, respectively). Those with floating toes on the plant foot showed a significantly greater SD in the antero-posterior position of the plant foot (p = 0.02). Pitching with floating toes may lead to inconsistent pitching motion.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1346-1359"},"PeriodicalIF":2.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147391470","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

Identification and classification of kinematically effective early flight postures in ski jumping. 跳台滑雪运动中运动学有效的早期飞行姿势的识别和分类。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-09-01 Epub Date: 2026-03-27 DOI: 10.1080/14763141.2026.2649472

Tomoya Ueno, Toru Ishihara, Keizo Yamamoto

{"title":"Identification and classification of kinematically effective early flight postures in ski jumping.","authors":"Tomoya Ueno, Toru Ishihara, Keizo Yamamoto","doi":"10.1080/14763141.2026.2649472","DOIUrl":"10.1080/14763141.2026.2649472","url":null,"abstract":"This study aimed to characterise early flight posture and classify movement strategies in ski jumping of trunk, hip, and knee kinematics. Using a 10-camera markerless motion capture system, three-dimensional motion data were collected from 30 ski jumpers of different competitive levels. During the early flight phase, time-series waveforms of trunk anterior tilt and hip and knee extension angles were extracted and time-normalised. Principal component analysis (PCA) was applied to reduce waveform dimensionality while preserving dominant coordination features. The first two principal components from each variable were subjected to hierarchical clustering. Based on clustering indices, a three-cluster solution was statistically supported, revealing three distinct movement strategies. To evaluate cluster-specific kinematic differences over time, statistical parametric mapping (SPM) one-way ANOVA with post hoc tests was applied to the original waveforms. Significant main effects of cluster were observed for trunk, hip, and knee kinematics. Post hoc analyses showed that trunk and knee differences were mainly driven by contrasts between Clusters 2 and 3, whereas hip kinematics primarily distinguished Cluster 1. Together, these results indicate that PCA-based clustering supported by SPM enables an objective classification of early flight movement strategies and a descriptive interpretation of inter-individual kinematic differences.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1440-1464"},"PeriodicalIF":2.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147522527","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

Efficiency of various blade types in rowing. 各种桨型在划船中的效率。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-09-01 Epub Date: 2026-03-18 DOI: 10.1080/14763141.2026.2643775

Valery Kleshnev

{"title":"Efficiency of various blade types in rowing.","authors":"Valery Kleshnev","doi":"10.1080/14763141.2026.2643775","DOIUrl":"10.1080/14763141.2026.2643775","url":null,"abstract":"The purposes of the study were: a) to develop a novel method to determine the centre of pressure acting on the blade by combining measurements from multiple shaft-mounted strain-gauge sensors, b) to experimentally evaluate the factors affecting blade efficiency and overall effectiveness in rowing using three different blade designs. One international-level male rower performed step-rate trials using each blade type, while biomechanical data were collected with the BioRow system. Results showed that although biomechanical characteristics such as stroke length, force profiles, and power output were generally similar across blades, hydrodynamic performance differed. Fat2 blades, due to their larger surface area, demonstrated the lowest blade slippage and highest propulsive efficiency. However, Comp blades-despite having the smallest area-provided the most effective performance, defined as the highest boat speed per unit of rower power, as reflected by the lowest Gross Drag Factor. Analysis of forces revealed that the actual centre of pressure was located more inboard than previously assumed, resulting in 7-8% heavier true gearing ratios. These findings suggest that blade effectiveness cannot be predicted solely from its slippage through the water and that smaller Comp blades may reduce rotational and axial losses, contributing to improved rowing performance.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1313-1323"},"PeriodicalIF":2.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147482295","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

Elite seoi-nage biomechanics: integration of centre-of-mass control, propulsion and rotation. 精英海洋生物力学：整合质心控制、推进和旋转。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-28 DOI: 10.1080/14763141.2026.2723212

Takanori Ishii, Sentaro Koshida

{"title":"Elite seoi-nage biomechanics: integration of centre-of-mass control, propulsion and rotation.","authors":"Takanori Ishii, Sentaro Koshida","doi":"10.1080/14763141.2026.2723212","DOIUrl":"https://doi.org/10.1080/14763141.2026.2723212","url":null,"abstract":"Biomechanical research on elite judo throws often focuses on the uke (receiver), leaving the tori's (thrower's) contributions underexplored. This study examined seoi-nage biomechanics in 19 elite male judoka, including world championship medallists, to identify how higher-performing (HP) tori optimise execution compared to lower-performing (LP) tori. Twelve athletes (HP, n = 6; LP, n = 6) were compared by uke angular momentum response. Three-dimensional motion and ground reaction forces were captured using an 18-camera system (250 Hz) and two force platforms (1000 Hz). The tori's centre of mass (COM) displacement, linear momentum, and angular momentum were quantified during turning and throwing phases, with group differences assessed via Mann-Whitney U tests (p < 0.05). HP tori showed greater vertical COM displacement (115-132%), increased forward linear momentum (62-142%), and higher angular momentum (62-169%) than LP tori. These traits-precise COM control, robust forward drive and early rotational force peak-enhanced uke rotation and tori stability, demonstrating efficient momentum transfer to the uke rather than the ground. Elite seoi-nage requires effective integration of COM control, propulsion and rotation. Findings inform coaching drills replicating kuzushi-tsukuri-kake sequences using uke angular momentum as a performance metric.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-17"},"PeriodicalIF":2.0,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148842005","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

Estimating running economy using wearable trunk accelerometry: a comparative analysis of three footwear conditions in highly trained runners. 使用可穿戴躯干加速度计估算跑步经济：高度训练的跑步者三种鞋类条件的比较分析。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-20 DOI: 10.1080/14763141.2026.2715652

Yoram Müller-Jabusch, Davide Petrella, Benedicte Vanwanseele, Toon T de Beukelaar

{"title":"Estimating running economy using wearable trunk accelerometry: a comparative analysis of three footwear conditions in highly trained runners.","authors":"Yoram Müller-Jabusch, Davide Petrella, Benedicte Vanwanseele, Toon T de Beukelaar","doi":"10.1080/14763141.2026.2715652","DOIUrl":"https://doi.org/10.1080/14763141.2026.2715652","url":null,"abstract":"Wearable accelerometry offers a practical methodology for analysing running biomechanics, a key determinant of running economy (RE). This study investigated whether accelerometer-derived features could estimate RE in highly trained runners. Eighteen male participants (age: 26.5 ± 3.4 years; body mass index: 21.1 ± 1.2 kg/m2; 5 km personal best: 15 min 26 s ± 1 min) completed one laboratory visit, with RE assessed during 5-min treadmill runs at 12 km/h and 16 km/h across three shoe conditions. Metabolic parameters were quantified via indirect calorimetry, while a tri-axial accelerometer measured biomechanical features. A data-driven two-step variable-selection procedure was combined with a linear mixed model to estimate RE from accelerometer data. Estimation accuracy was assessed with mean absolute error (MAE) and Bland-Altman plots. A three-way repeated-measures ANOVA was used to compare estimated and actual RE across speed and shoe conditions. At 12 km/h, six biomechanical variables explained 35.4% of RE variance, whereas at 16 km/h, two variables accounted for 35.1%. While estimated and actual RE did not significantly differ at either speed (p = 1.00), this does not demonstrate equivalence. Relative MAE was 3-4% and Bland-Altman plots showed wide relative limits of agreement (~9-10%), indicating limited individual-level accuracy. Accelerometry could estimate RE within this sample on a group-level, but its individual-level accuracy and sensitivity to footwear effects are limited.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-19"},"PeriodicalIF":2.0,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148800676","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 an isometric conditioning activity on sprint swimming performance in high-level swimmers. 等长调节活动对高水平游泳运动员短跑游泳成绩的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-20 DOI: 10.1080/14763141.2026.2720208

Wojciech Sadowski, Wojciech Rejdych, Wojciech Głyk, Michał Krzysztofik

{"title":"Effects of an isometric conditioning activity on sprint swimming performance in high-level swimmers.","authors":"Wojciech Sadowski, Wojciech Rejdych, Wojciech Głyk, Michał Krzysztofik","doi":"10.1080/14763141.2026.2720208","DOIUrl":"https://doi.org/10.1080/14763141.2026.2720208","url":null,"abstract":"This study examined whether a brief, catch-phase-resembling isometric conditioning activity (CA) combined with an individualised rest time (IRT) enhances dry-land performance and transfers to sprint swimming performance in swimmers. Twelve competitive swimmers performed a randomised, counterbalanced crossover design including two dry-land sessions and two in-water sessions. The CA consisted of maximal voluntary isometric contractions (MVIC, 3 × 3 s, 1 min rest) performed in a position resembling the front crawl catch phase. IRT was determined based on post-CA changes in MVIC measured at 4 and 8 min after the CA. Swimming kinematic and kinetic variables were assessed during a 25 m front crawl swim. The CA elicited a significant increase in the dominant arm MVIC following the IRT, whereas no significant changes were observed in the non-dominant arm. Despite this localised potentiation, no significant differences were found between experimental (with CA) and control conditions (without CA) for swimming velocity, time, force, power, stroke length, or stroke rate. A brief, catch-phase-resembling isometric dry-land CA combined with IRT enhanced dominant-arm MVIC, but did not improve sprint swimming performance. These findings suggest that isolated isometric potentiation may be insufficient to enhance performance in complex, highly coordinated tasks such as sprint swimming.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-13"},"PeriodicalIF":2.0,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148800665","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

Human pose estimation for automated biomechanical swimming analysis. 用于自动生物力学游泳分析的人体姿态估计。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-18 DOI: 10.1080/14763141.2026.2715647

Itay Coifman, May Hakim, Gera Weiss, Raziel Riemer

{"title":"Human pose estimation for automated biomechanical swimming analysis.","authors":"Itay Coifman, May Hakim, Gera Weiss, Raziel Riemer","doi":"10.1080/14763141.2026.2715647","DOIUrl":"https://doi.org/10.1080/14763141.2026.2715647","url":null,"abstract":"Human pose estimation (HPE) has shown promise in biomechanical analysis across various sports, but its application to swimming has been limited due to the challenges of underwater video analysis. This study presents a novel system for analysing swimming biomechanics using single-camera videos and HPE. We developed specialised models for sagittal (side) and transverse (front) views, achieving average precision (AP) scores of 91.5% and 91.6%, respectively, thus significantly outperforming out-of-the-box HPE models. The system automatically extracts key biomechanical parameters, including stroke rate, kick rate, projected joint angles, and stroke phase timings. The model was tested on a dataset of 24 videos obtained from 12 different swimmers (1 video per view) demonstrating strong agreement with manual annotations, with mean absolute percentage errors (MAPE) of less than 1% for both stroke rate and kick rate. Phase detection accuracy (RMSE) ranged from 1.08 to 2.49 frames, depending on the stroke phase and camera view. The system enables automated analysis of swimming technique without requiring complex motion capture equipment or extensive human annotation, allowing for large-scale biomechanical swimming studies. The system's accuracy and accessibility make it a promising tool for both research and practical applications in swimming biomechanics.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-24"},"PeriodicalIF":2.0,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148800691","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

Biomechanical comparison between toe and edge jumps in figure skating: focusing on toe-loop and loop in female skaters. 花样滑冰脚趾跳和边缘跳的生物力学比较：以女子花样滑冰运动员的脚趾跳和边缘跳为重点。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-08-18 DOI: 10.1080/14763141.2026.2714287

Maral-Erdene Gansukh, Nobuaki Fujibayashi, Shinji Sakurai

{"title":"Biomechanical comparison between toe and edge jumps in figure skating: focusing on toe-loop and loop in female skaters.","authors":"Maral-Erdene Gansukh, Nobuaki Fujibayashi, Shinji Sakurai","doi":"10.1080/14763141.2026.2714287","DOIUrl":"https://doi.org/10.1080/14763141.2026.2714287","url":null,"abstract":"In figure skating, Toe jumps have been reported to achieve greater jump height than Edge jumps. However, the biomechanical differences inherent in their associated take-off mechanisms have not yet been clarified. Therefore, the aim was to clarify the biomechanical distinctions between the triple Toe-loop (TL) and the triple Loop (LP), which share the same take-off leg. Ten female skaters performed both jumps, while three-dimensional kinematic data were collected using a marker-based optical motion-capture system. Parameters related to vertical and rotational velocities were analysed across the take-off sequence. An inverted pendulum model and relative vertical momentum analysis were applied to investigate the mechanisms of vertical velocity generation. Angular momentum, moment of inertia, inclination angle, and trunk twist angle were calculated to examine the mechanisms underlying rotational velocity generation. The TL was characterised by a stepwise acquisition of vertical velocity and angular momentum across the Glide and Transition phases. In contrast, the LP demonstrated a highly integrated take-off strategy, simultaneously generating vertical velocity and angular momentum during the Transition through coordinated lower-limb inclination and free-leg swing. These findings reveal distinct take-off strategies underlying Toe and Edge jumps and provide biomechanical evidence to support coaching and performance evaluation.","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":"148800656","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