Sports Biomechanics最新文献_第8页

Synergy structure and distribution mechanism of joint moments in the landing leg during tennis pinpoint serve. 网球精准发球中着地腿关节力矩的协同结构及分布机理。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-06-10 DOI: 10.1080/14763141.2026.2687020

Zhanyi Zhou, Jianqi Pan, Zixiang Gao, Fengping Li, Diwei Chen, Dongxu Wang, Amador García Ramos, Liangliang Xiang, Yaodong Gu

{"title":"Synergy structure and distribution mechanism of joint moments in the landing leg during tennis pinpoint serve.","authors":"Zhanyi Zhou, Jianqi Pan, Zixiang Gao, Fengping Li, Diwei Chen, Dongxu Wang, Amador García Ramos, Liangliang Xiang, Yaodong Gu","doi":"10.1080/14763141.2026.2687020","DOIUrl":"https://doi.org/10.1080/14763141.2026.2687020","url":null,"abstract":"Tennis-serve landing is a high-intensity single-leg impact requiring coordinated multi-joint control, yet skill-level differences in whole-limb kinetics remain unclear. Fifteen elite and fifteen amateur male players performed Pinpoint serves. 3D kinematics and kinetics were captured. Principal component analysis (PCA) extracted synergy moments (Syn1-Syn2), and vector coding quantified coupling-angle coordination patterns. Two synergy moments explained the dominant variance. In Syn1, elites showed higher contributions from hip/ankle rotation (p = 0.032) and knee abduction-adduction (p < 0.001), whereas amateurs additionally over-weighted ankle plantar-dorsiflexion (p = 0.027). In Syn2, elites emphasised ankle plantar-dorsiflexion and inversion-eversion, hip abduction-adduction, and knee rotation (all p < 0.05 vs. mean); amateurs exceeded the mean only in hip abduction-adduction (p < 0.05) and knee rotation (p = 0.003). Elites showed greater Syn2 prevalence (p < 0.001) and higher proportions of Syn2-dominant anti-phase (p = 0.002) and in-phase patterns (p = 0.013); amateurs showed higher Syn1-dominant anti-phase patterns (p < 0.001). Elites dissipate rotational momentum through functional redundancy across joints, supporting robust stability. Amateurs rely on a stiffer, reactive braking strategy that may increase cumulative tissue loading. Training should develop multi-planar rotational adaptability to optimise landing mechanics and reduce injury risk.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-18"},"PeriodicalIF":2.0,"publicationDate":"2026-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148220356","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 drivers of fastball velocity identified from In-game motion capture using Super Learner ensemble modelling. 快速球速度的生物力学驱动识别从游戏中的动作捕捉使用超级学习者集成模型。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-06-08 DOI: 10.1080/14763141.2026.2680518

Garrett Fernandez, Garrett Bullock, Ryan Zappa, Gretchen Oliver, Kristen Nicholson

{"title":"Biomechanical drivers of fastball velocity identified from In-game motion capture using Super Learner ensemble modelling.","authors":"Garrett Fernandez, Garrett Bullock, Ryan Zappa, Gretchen Oliver, Kristen Nicholson","doi":"10.1080/14763141.2026.2680518","DOIUrl":"https://doi.org/10.1080/14763141.2026.2680518","url":null,"abstract":"This study used in-game markerless motion capture to develop a Super Learner ensemble model for predicting fastball velocity, with the aim of identifying key biomechanical contributors and evaluating generalisability across conferences. Data were collected from 322 NCAA Division I pitchers (ACC: n = 122; SEC: n = 200) between 2022 and 2024. The ensemble combined five algorithms-elastic net, random forest, support vector machines, gradient boosting, and multivariate adaptive regression splines (MARS)-and was trained using 10-fold cross-validation with internal-external validation by conference. Internal performance yielded RMSE 2.70 mph (95% CI 2.44-2.99), MAE 2.10 mph (95% CI 1.93-2.29), R2 = 0.29 (95% CI 0.21-0.36), and calibration slope = 0.99 (95% CI 0.83-1.15). Internal-external performance was direction-dependent (SEC→ACC RMSE = 3.04 mph, 95% CI 2.51-3.63; ACC→SEC RMSE = 2.55 mph, 95% CI 2.33-2.77). Height was the most influential predictor (81.2%), followed by mass (2.47%). Algorithm weights favoured elastic net (62.6%), followed by support vector machines (19.8%), gradient boosting (13.6%), and random forest (4%). Findings suggest that biomechanical strategies for generating velocity vary between groups and highlight the potential of ensemble machine learning to identify biomechanical contributors to fastball velocity and inform individualised analysis in baseball.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-19"},"PeriodicalIF":2.0,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148200491","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 : 2026-06-05 DOI: 10.1080/14763141.2026.2681952

Samuel D Rosario, Micah C Garcia, Emily Crutchfield, Amanda Murray, Grant Norte, David M Bazett-Jones

{"title":"Age-related differences in tibial accelerations and cadence between paved and unpaved trail surfaces during a prolonged run.","authors":"Samuel D Rosario, Micah C Garcia, Emily Crutchfield, Amanda Murray, Grant Norte, David M Bazett-Jones","doi":"10.1080/14763141.2026.2681952","DOIUrl":"https://doi.org/10.1080/14763141.2026.2681952","url":null,"abstract":"Running on unpaved trails is commonly perceived to reduce impact loading and injury risk, yet biomechanical evidence remains limited across age groups. We investigated the effects of paved versus unpaved surfaces on running biomechanics and surface-related injury risk perceptions in Master and young adult runners. Sixty participants (30 Master, 30 young adult) completed 5 km runs on both surfaces while wearing triaxial tibial accelerometers. We compared average cadence, peak resultant and axial tibial acceleration (TA), and cumulative resultant and axial TA using ANCOVA, controlling for running speed. Peak resultant TA was higher on unpaved than paved surfaces (p = .014), whereas cadence, peak axial TA, and cumulative axial and resultant TA did not differ between surfaces (p > .05). Master runners exhibited higher cadence and lower peak resultant TA than young adults (p < .05), while cumulative resultant TA did not differ by age (p > .05). Nearly half the participants (48.3%) perceived that running on unpaved trails reduces injury risk. Overall, unpaved trails produced higher peak TA without changing cumulative TA. Age-group differences in cadence were accompanied by lower peak resultant TA for Master runners, suggesting an age-related shift towards reduced per-step impact magnitude.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-17"},"PeriodicalIF":2.0,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148165330","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 stance foot centre of pressure and timing of heel lift on ground reaction force and stride mechanics in Amateur baseball pitchers. 站姿、脚掌压力中心和提跟时机对业余棒球投手地反力和跨步力学的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-06-04 DOI: 10.1080/14763141.2026.2682978

Sakiko Oyama, Brian Stephens, Hugo Giambini

{"title":"Effects of stance foot centre of pressure and timing of heel lift on ground reaction force and stride mechanics in Amateur baseball pitchers.","authors":"Sakiko Oyama, Brian Stephens, Hugo Giambini","doi":"10.1080/14763141.2026.2682978","DOIUrl":"https://doi.org/10.1080/14763141.2026.2682978","url":null,"abstract":"The movement and positioning of the body during the early phases of the pitching motion can have cascading effects on downstream mechanics. While stride mechanics have been the focus of recent research, the role of stance foot mechanics in generating ground reaction force (GRF) and influencing stride kinematics remains unclear. This study aimed to determine whether stance foot centre of pressure (COP) location and heel lift timing are related to stride-phase GRF and stride kinematics in baseball pitchers. Biomechanical data were collected from 60 high school and 15 collegiate pitchers using a motion capture system and force platforms. Within the high school pitchers, COP location at the time of peak forward GRF and heel lift timing were analysed in relation to GRF and stride mechanics. Most high school and collegiate pitchers generated peak forward force through the forefoot and maintained heel contact with the ground throughout most (~85%) of the stride phase of pitching. The timing of heel lift and COP location at the time of peak forward GRF were not associated with forward propulsive force, stride mechanics, or ball speed, but were associated with pelvis orientation at lead foot contact in high-school pitchers.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-13"},"PeriodicalIF":2.0,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148158867","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

Running with and without blood flow restriction on fatigability and biomechanics: a cross-over trial. 有或没有血流量限制对疲劳和生物力学的影响：交叉试验。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-06-02 DOI: 10.1080/14763141.2026.2681953

Anh Phong Nguyen, Thomas Hansoulle, Joachim Van Cant, Benoit Pairot de Fontenay, Kim Hebert-Losier

{"title":"Running with and without blood flow restriction on fatigability and biomechanics: a cross-over trial.","authors":"Anh Phong Nguyen, Thomas Hansoulle, Joachim Van Cant, Benoit Pairot de Fontenay, Kim Hebert-Losier","doi":"10.1080/14763141.2026.2681953","DOIUrl":"https://doi.org/10.1080/14763141.2026.2681953","url":null,"abstract":"Running assessments are frequently conducted without inducing fatigability because achieving true exhaustion in athletes can be both time consuming and physically demanding. Blood flow restriction (BFR) presents a potential solution by reducing time-to-exhaustion. To determine whether running with BFR (1) accelerates fatiguability compared to standard running and (2) influences running spatiotemporal parameters, including step frequency, step length, contact time, flight time, and duty factor. Sixteen participants (11 men, 5 women) completed two cross-over running trials until exhaustion under two conditions: control and 80% occlusion BFR. Time-to-exhaustion and heart rate were recorded as well as pre/post run maximal voluntary isometric contractions for knee flexors, knee extensors, and ankle plantar flexors. Running spatiotemporal parameters were measured at 65% of maximal aerobic speed both before and after exhaustive running. The BFR protocol significantly shortened time-to-exhaustion (7 min 51 s ±2 min 54 s vs. 24 min 02 s ±12 min 10 s in control, p < .001). Heart rate at exhaustion was lower in the BFR condition (169.5 ± 19.0 vs. 188.1 ± 8.9 bpm, p = .001). Post-run knee flexors strength declined similarly in both protocols (~21%), indicating comparable neuromuscular fatigability despite the shorter BFR running time. None of the spatiotemporal parameters differed significantly between conditions (p > .074). Running with BFR accelerates fatigability without significantly affecting running spatiotemporal parameters.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-14"},"PeriodicalIF":2.0,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148145288","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

Simulated soccer pressing scenarios alter kinematics and kinetics of sidestep cutting associated with ACL injury risk. 模拟足球压迫情景改变与前交叉韧带损伤风险相关的侧步切割的运动学和动力学。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-06-01 Epub Date: 2025-12-22 DOI: 10.1080/14763141.2025.2594630

Tatsuya Kono, Yoshitsugu Tanino, Noriyuki Kida

{"title":"Simulated soccer pressing scenarios alter kinematics and kinetics of sidestep cutting associated with ACL injury risk.","authors":"Tatsuya Kono, Yoshitsugu Tanino, Noriyuki Kida","doi":"10.1080/14763141.2025.2594630","DOIUrl":"10.1080/14763141.2025.2594630","url":null,"abstract":"In soccer, anterior cruciate ligament (ACL) injuries frequently occur during sidestep cutting (SSC) in pressing situations. This study examined the effects of soccer-specific pressing tasks on SSC kinematics and kinetics. Twenty male recreational soccer players performed a 90° SSC followed by three task conditions: the Normal condition, in which participants simply continued running; the Pressing 70% condition, in which they reached for a ball placed at 70% of maximal straddle width; and the Pressing 100% condition, in which they reached for a ball at 100%. Maximal straddle width was defined as the distance between the toes during maximally hip-abducted. Both pressing conditions simulated defensive pressing. Three-dimensional peak knee and trunk angles, ground reaction forces, and knee moments of the supporting leg during the first 50 ms of the stance phase were compared. Results showed that peak knee valgus and trunk lateral inclination angles, as well as peak knee flexion, valgus, and internal rotation moments, were greater in both pressing conditions. These findings indicate that simulating pressing tasks altered SSC kinematic and kinetic characteristics. Notably, variables associated with ACL injury risk increased under pressing tasks, suggesting that pressing situations themselves may represent a biomechanical ACL injury risk.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"914-933"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145806254","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

Ground reaction forces and free moment using neutral, motion control, and minimalist shoes in forefoot runner females. 地面反作用力和自由力矩使用中性，运动控制，和极简鞋的前足跑女。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-06-01 Epub Date: 2025-11-14 DOI: 10.1080/14763141.2025.2585281

Fatemeh Salari-Esker, Hamed Esmaeili, Annahita Azmoon

{"title":"Ground reaction forces and free moment using neutral, motion control, and minimalist shoes in forefoot runner females.","authors":"Fatemeh Salari-Esker, Hamed Esmaeili, Annahita Azmoon","doi":"10.1080/14763141.2025.2585281","DOIUrl":"10.1080/14763141.2025.2585281","url":null,"abstract":"Despite advances in footwear industry, running related injuries (RRI) rate is high in female runners. Selection of proper shoe is a big challenge for runners. We aimed to compare the effects of running-induced fatigue on ground reaction forces and free moments while using neutral (N-Shoes), motion control (MC-Shoes), and minimalist shoes (M-Shoes) in forefoot runner females. Twenty recreational female forefoot runners completed fatiguing treadmill running protocol using M-Shoes, MC-Shoes and N-Shoes in three separated sessions. Participants ran on a runway at 3.3 m/s before and after fatiguing protocol in each session. Using N-shoes increased peak lateral force, peak braking force, peak propulsive force, peak vertical force, peak positive free moment, peak negative free moment, load rate, medio-lateral impulse, antero-posterior impulse and vertical impulse. Using MC-shoes, increased peak vertical and peak braking forces and vertical impulse, and decreased peak lateral force and peak negative and positive free moments. While, using M-shoes increased peak braking forces. Minimalist shoes maintain pre-fatigue ground reaction forces and free moments during fatigued running compared to neutral and motion control shoes in female forefoot runners. Using minimalist shoes is recommended to decrease exacerbated running-induced fatigue effects in forefoot runner females.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"791-806"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145514896","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

Performance in elite discus throwing is governed by phase-specific timing and velocity transfer. 优秀的掷铁饼运动员的表现是由相位特定的计时和速度转移决定的。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-06-01 DOI: 10.1080/14763141.2026.2681954

Kristof Kipp, Emma Patterson, Wanda Sihanath, Christopher Geiser

{"title":"Performance in elite discus throwing is governed by phase-specific timing and velocity transfer.","authors":"Kristof Kipp, Emma Patterson, Wanda Sihanath, Christopher Geiser","doi":"10.1080/14763141.2026.2681954","DOIUrl":"https://doi.org/10.1080/14763141.2026.2681954","url":null,"abstract":"This study examined the associations between phase-specific kinematic variables and discus throw performance in elite throwers. Video recordings of 23 male (63.39 ± 4.19 m) and 16 female (59.74 ± 7.25 m) discus throwers were analysed to obtain kinematic variables describing phase durations, centre-of-mass (COM) velocities, discus paths and velocities, torso and hip-shoulder-arm positions, and pelvis and torso rotational velocities. Linear mixed models were used to identify phase-specific kinematic variables associated with throwing distance while accounting for repeated trials within athletes. Phase-specific kinematic variables positively associated with throwing distance were 1) a longer entry phase paired with shorter transition and delivery phases, 2) faster horizontal COM velocity during the flight phase, 3) peak horizontal discus velocity during the delivery, and 4) slower pelvis rotational velocity during the transition and faster torso rotational velocity during the delivery. Measures of torso lean and hip-shoulder-arm separation angles were not associated with throwing performance. These findings indicate that elite discus throw performance is governed more by phase-specific timing as well as control and regulation of linear and rotational velocities than by isolated postural characteristics. Further, effective technique appears to reflect the ability to establish favourable mechanical conditions early and express them efficiently during the delivery phase.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-15"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148139584","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 footwear collar height on lower-limb biomechanics during running and change-of-direction tasks in court-sport athletes. 鞋领高度对场地运动运动员跑步和改变方向时下肢生物力学的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-06-01 Epub Date: 2025-11-24 DOI: 10.1080/14763141.2025.2590031

Daniel R Bonanno, Danielle M Vickery-Howe, Nayun Ahn, Hylton B Menz, Jodie A McClelland, Wing-Kai Lam, Harry Kennedy, Kane J Middleton

{"title":"Effects of footwear collar height on lower-limb biomechanics during running and change-of-direction tasks in court-sport athletes.","authors":"Daniel R Bonanno, Danielle M Vickery-Howe, Nayun Ahn, Hylton B Menz, Jodie A McClelland, Wing-Kai Lam, Harry Kennedy, Kane J Middleton","doi":"10.1080/14763141.2025.2590031","DOIUrl":"10.1080/14763141.2025.2590031","url":null,"abstract":"Collar height is a distinctive feature of court-sport footwear, yet its biomechanical effects remain underexplored. This study compared the effect of low-cut and high-cut footwear on lower-limb biomechanics during straight-line running and change-of-direction tasks in court-sport athletes (11 females, 11 males). During straight-line running, reduced ankle dorsiflexion (32-77% of gait cycle, mean difference [MD]: 2.6°) and toe-out angles (46-76%, MD: 2°), and increased knee abduction angles (14-20%, MD: 0.9°) were observed in high-cut footwear. During the change-of-direction task, reduced ankle dorsiflexion (28-64%, MD: 2.8°) and rearfoot inversion angles (72-87%, MD: 2.6°) were observed in high-cut footwear. Independent of collar height, female participants exhibited greater knee abduction angles during running (79-100%, MD: 5°), while they exhibited smaller knee flexion (38-49%, MD: 7.3°; and, 65-82%, MD: 9.6°), hip abduction angles (36-97%, MD: 8.6°), reduced knee extension moments (54-82%, MD: 0.8 Nm/kg), and greater hip abduction moments (33-40%, MD: 0.9 Nm/kg) during the change-of-direction task. Overall, our findings indicate that low-cut footwear allowed greater ankle mobility, while high-cut designs limited rearfoot inversion during lateral movements. Hip and knee biomechanics were similar across collar heights, but sex-based differences existed. Footwear collar selection should reflect common playing demands and individual biomechanics.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"855-871"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145589919","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

Applying statistical parametric mapping regression to identify key kinematic characteristics of underwater dolphin kicking. 应用统计参数映射回归识别水下海豚踢腿的关键运动学特征。

IF 2 3区医学

Sports Biomechanics Pub Date : 2026-06-01 Epub Date: 2025-12-19 DOI: 10.1080/14763141.2025.2596763

Shuxin Wang, Yuanhao Li, Xiaotong Chen, Yankang Jiang, Yupeng Shen

{"title":"Applying statistical parametric mapping regression to identify key kinematic characteristics of underwater dolphin kicking.","authors":"Shuxin Wang, Yuanhao Li, Xiaotong Chen, Yankang Jiang, Yupeng Shen","doi":"10.1080/14763141.2025.2596763","DOIUrl":"10.1080/14763141.2025.2596763","url":null,"abstract":"The purpose of this study was to systematically explore the key kinematic factors influencing swimming velocity during the underwater dolphin kick (UDK) using statistical parametric mapping regression. Twenty-one university swimmers (16 males and 5 females) had a personal best within 20% of the world record. This study adopted a quantitative cross-sectional experimental design to identify phase-specific relationships between kinematic variables and swimming velocity during UDK. Their performances were recorded and analysed using two-dimensional (2D) video analysis. Twenty-one regression models revealed six key kinematic variables significantly associated with UDK velocity: the mean vertical velocity of the fifth metatarsal phalangeal joint, maximum vertical velocity of the fifth metatarsal phalangeal joint, maximum knee angle, minimum knee angle, minimum ankle angle, and mean angular velocity of the knee. Increases in these variables corresponded to higher swimming velocity. These findings provide a detailed understanding of the phase-specific contributions of lower-limb kinematics to UDK performance and offer practical implications for optimising training strategies.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"934-949"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145783487","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