Sports Biomechanics最新文献_第7页

Reliability and validity of 2D-video analysis to objectively assess hamstring performance during the H-test. 二维视频分析在h测试中客观评估腿筋表现的信度和效度。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-05-08 DOI: 10.1080/14763141.2023.2203132

Caroline Prince, Sébastien Latella, Benoit Gachon, Brice Picot

{"title":"Reliability and validity of 2D-video analysis to objectively assess hamstring performance during the H-test.","authors":"Caroline Prince, Sébastien Latella, Benoit Gachon, Brice Picot","doi":"10.1080/14763141.2023.2203132","DOIUrl":"10.1080/14763141.2023.2203132","url":null,"abstract":"The H-test is commonly used during return-to-sport decisions after hamstring muscle injury. The primary aim was to evaluate the reliability of two-dimensional (2D) video analysis for the H-Test. The second aim was to assess its validity compared to an electronic gyroscope (gold standard), and the third aim was to establish normative values. We conducted a cross-sectional study including 30 healthy individuals. Mean, maximal velocities (VMean and Vmax) and range of motion (ROM) of hip flexion were captured during the H-test to evaluate inter-rater and test-retest reliability using intraclass correlation coefficient (ICC2,1) and standard error of measurement (SEM). Correlation analysis (r) and as typical error of estimate (TEE) were used to assess the validity between the video and the gyroscope. Reliability was excellent for ROM (ICC:0.91, [95% CI:0.83-0.95]), moderate for VMean (ICC:0.57; [95% CI:0.32-0.74]) and VMax (ICC:0.64, [95% CI:0.43-0.79]). Strong positive correlations were found between video and gyroscope for VMean (r = 0.79, [95% CI:0.71-0.86]) and VMax (r = 0.84, [95% CI:0.77-0.89]) and very strong for ROM (r = 0.89, [95% CI:0.85-0.93]). Males exhibited a higher VMax (p < 0.001) than females, while females had a higher ROM (p < 0.001). 2D-video analysis is a valid and reliable method to assess ROM during the H-Test and could easily be implemented in clinical practice.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"985-998"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9784659","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

Effect of incline versus block heel-raise exercise on foot muscle strength and vertical jump performance - an 11-week randomized resistance training study. 斜坡与块状提踵运动对足部肌肉力量和垂直跳跃成绩的影响--一项为期11周的随机阻力训练研究。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-02-09 DOI: 10.1080/14763141.2023.2176353

Torstein E Dæhlin, Michael D Kennedy, Hossein Rouhani, Loren Z F Chiu

{"title":"Effect of incline versus block heel-raise exercise on foot muscle strength and vertical jump performance - an 11-week randomized resistance training study.","authors":"Torstein E Dæhlin, Michael D Kennedy, Hossein Rouhani, Loren Z F Chiu","doi":"10.1080/14763141.2023.2176353","DOIUrl":"10.1080/14763141.2023.2176353","url":null,"abstract":"Strengthening the toe flexors and ankle plantar flexors may improve vertical jump performance. One exercise that may be effective for concurrently strengthening these muscles is heel-raises performed on an incline. The purpose of this study was to investigate the effects of incline versus conventional (block) heel-raise exercise on hallux and II-V digit flexor strength, vertical jump performance, and ankle plantar flexor strength. Thirty-three female volleyball players were randomly allocated to perform incline (n = 17) or block (n = 16) heel-raise exercise for 11-weeks. Participants' toe flexor strength, countermovement jump, approach jump, and ankle plantar flexor strength were assessed before, after 7 weeks, and after 11 weeks of exercise. There were no significant time-by-group interactions for any variable (p > 0.05). However, both groups improved their hallux flexor strength (Δ0.27 ± 0.50 N·kg-1; p < 0.05), and vertical countermovement (Δ1.2 ± 2.3 cm; p < 0.05) and approach (Δ1.9 ± 2.6 cm; p < 0.05) jump height from pre- to post-test. No changes were observed in the ankle plantar flexor or II-V digit flexor strength (n > 0.05). Both incline and conventional heel-raises improve toe flexor strength. Practitioners seeking to improve individuals' foot function may consider incorporating incline or block heel-raises.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"889-905"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10675488","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

Kinematic changes in the undulatory kicking during underwater swimming. 水下游泳时起伏踢腿的运动学变化。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-02-09 DOI: 10.1080/14763141.2023.2177192

Santiago Veiga, Xiao Qiu, Alfonso Trinidad, Pablo Suz, Bruno Bazuelo, Enrique Navarro

{"title":"Kinematic changes in the undulatory kicking during underwater swimming.","authors":"Santiago Veiga, Xiao Qiu, Alfonso Trinidad, Pablo Suz, Bruno Bazuelo, Enrique Navarro","doi":"10.1080/14763141.2023.2177192","DOIUrl":"10.1080/14763141.2023.2177192","url":null,"abstract":"The contribution to total race distances of underwater undulatory swimming (UUS) is increasing at the elite level. However, little is known about the technical modifications during underwater swimming. In the present research, the aim was to compare the kinematic characteristics of competitive swimmers between the first and last kick of UUS. Fifty-four national level swimmers (26 males and 28 females) performed 25 m maximal efforts from a push start, and two sequential video cameras captured the underwater segment. Kicking parameters and segmental kinematics were calculated by means of two-dimensional direct linear transformation algorithms. Dolphin kick performance showed a clear impairment in velocity (η2 : 0.65), but changes on kicking parameters depended on the swimmer's gender, with males decreasing kicking amplitude (η2 : 0.25) and females decreasing kicking frequency (η2 : 0.18) in the last kick. Decline in kicking performance seemed to be more related to the swimmers' body configuration when approaching the water surface (greater trunk inclination and maximal body amplitude in sagittal plane) than to technical modifications in the dolphin kick movement (no changes in the joints range of movement except the hip). Swimmers should control their vertical body amplitude at the end of underwater sections to minimise the decrease in kicking performance.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"906-920"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10675658","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

Interpersonal coordination of opposing player dyads during attacks performed in official football matches. 在正式足球比赛中进行攻击时，对方球员二人组的人际协调。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-05-21 DOI: 10.1080/14763141.2023.2212664

Fabio Giuliano Caetano, Paulo Roberto Pereira Santiago, Ricardo da Silva Torres, Sergio Augusto Cunha, Felipe Arruda Moura

{"title":"Interpersonal coordination of opposing player dyads during attacks performed in official football matches.","authors":"Fabio Giuliano Caetano, Paulo Roberto Pereira Santiago, Ricardo da Silva Torres, Sergio Augusto Cunha, Felipe Arruda Moura","doi":"10.1080/14763141.2023.2212664","DOIUrl":"10.1080/14763141.2023.2212664","url":null,"abstract":"The purpose of this study was to characterise the interpersonal coordination between opponent players during offensive sequences in official matches and to verify if offensive sequences ended in shots to goal present different coordination patterns when compared than those that ended in defensive tackles. A total of 580 offensive sequences occurred during matches resulting in shots to goal (n = 172) or defensive tackles (n = 408) were analysed. The bidimensional coordinates and technical actions of male professional football players (n = 1160) were obtained using a video-based tracking system. Dyads were defined using a network analysis and composed of the nearest opponent. Interpersonal coordination of the dyads was analysed using the vector coding and the frequency for each coordination pattern was computed. In-phase was predominant for all displacement directions and offensive sequences outcomes, and antiphase was the least frequent. For lateral displacements, offensive sequences ending in shot to goal presented lower frequency for in-phase and higher frequency for offensive player phase than ended in defensive tackle. This information about the relationship of opponent players dyads during decisive moments of the matches provides fundamentals for future research and assists coaches to understand the different behaviours in successful and unsuccessful attacks.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1048-1063"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9690943","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 gold rush in para swimming: changes in the speed curve of a visually impaired world and paralympic champion - a case study. 残疾人游泳的淘金热：视障世界冠军和残奥冠军速度曲线的变化——个案研究。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-06-18 DOI: 10.1080/14763141.2023.2221680

Augusto C Barbosa, Leonardo Tomasello Araújo, Leonardo Vecchi Leis, Thiago Fernando Lourenço, Renato Barroso, Tomohiro Gonjo, Leopoldo A Paolucci, Bjørn H Olstad, André G P Andrade

{"title":"The gold rush in para swimming: changes in the speed curve of a visually impaired world and paralympic champion - a case study.","authors":"Augusto C Barbosa, Leonardo Tomasello Araújo, Leonardo Vecchi Leis, Thiago Fernando Lourenço, Renato Barroso, Tomohiro Gonjo, Leopoldo A Paolucci, Bjørn H Olstad, André G P Andrade","doi":"10.1080/14763141.2023.2221680","DOIUrl":"10.1080/14763141.2023.2221680","url":null,"abstract":"This case study examined the association between 50 m freestyle and speed curve parameters of a world-class Paralympic swimmer and analysed the changes in speed curves and their frequency components across her performance levels. From 2018 to 2021, a visually impaired female swimmer (26.59 s in 50 m freestyle, S12 class) underwent 22 tests to obtain instantaneous speed synchronised with video recording. She regularly performed 50 m freestyle in competitions and time trials. The fast Fourier transformation method converted the speed signal into frequency domains and determined the relative contribution of the harmonics with two maxima and minima (H2, arms actions) and six maxima and minima (H6, legs actions). The functional paired t-test compared the speed curves at the beginning (PRE) and end (POST) of the analysed period. The 50 m freestyle time correlated with average speed (r = -0.50, p = 0.02). The contribution of H6 increased in the first year and remained large, whereas the contribution of H2 was lower throughout the whole period. POST was faster than PRE in five moments that coincide with the downward leg kick moments. These changes allowed her to stay longer at the upper part of the curve and improve performance over time.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1115-1128"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9655678","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

Comparison of different machine learning models to enhance sacral acceleration-based estimations of running stride temporal variables and peak vertical ground reaction force. 不同机器学习模型的比较，以增强基于骶骨加速度的跑步跨步时间变量和峰值垂直地面反作用力的估计。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-01-06 DOI: 10.1080/14763141.2022.2159870

Aurélien Patoz, Thibault Lussiana, Bastiaan Breine, Cyrille Gindre, Davide Malatesta

{"title":"Comparison of different machine learning models to enhance sacral acceleration-based estimations of running stride temporal variables and peak vertical ground reaction force.","authors":"Aurélien Patoz, Thibault Lussiana, Bastiaan Breine, Cyrille Gindre, Davide Malatesta","doi":"10.1080/14763141.2022.2159870","DOIUrl":"10.1080/14763141.2022.2159870","url":null,"abstract":"Machine learning (ML) was used to predict contact (<math><mrow><msub><mi>t</mi><mi>c</mi></msub></mrow></math>) and flight (<math><mrow><msub><mi>t</mi><mi>f</mi></msub></mrow></math>) time, duty factor (DF) and peak vertical force (<math><mrow><msub><mi>F</mi><mrow><mi>v</mi><mo>,</mo><mrow><mrow><mi>max</mi></mrow></mrow></mrow></msub></mrow></math>) from IMU-based estimations. One hundred runners ran on an instrumented treadmill (9-13 km/h) while wearing a sacral-mounted IMU. Linear regression (LR), support vector regression and two-layer neural-network were trained (80 participants) using IMU-based estimations, running speed, stride frequency and body mass. Predictions (remaining 20 participants) were compared to gold standard (kinetic data collected using the force plate) by calculating the mean absolute percentage error (MAPE). MAPEs of <math><mrow><msub><mi>F</mi><mrow><mi>v</mi><mo>,</mo><mrow><mrow><mi>max</mi></mrow></mrow></mrow></msub></mrow></math> did not significantly differ among its estimation and predictions (P = 0.37), while prediction MAPEs for <math><mrow><msub><mi>t</mi><mi>c</mi></msub></mrow></math>, <math><mrow><msub><mi>t</mi><mi>f</mi></msub></mrow></math> and DF were significantly smaller than corresponding estimation MAPEs (P ≤ 0.003). There were no significant differences among prediction MAPEs obtained from the three ML models (P ≥ 0.80). Errors of the ML models were equal to or smaller than (≤32%) the smallest real difference for the four variables, while errors of the estimations were not (15-45%), indicating that ML models were sufficiently accurate to detect a clinically important difference. The simplest ML model (LR) should be used to improve the accuracy of the IMU-based estimations. These improvements may be beneficial when monitoring running-related injury risk factors in real-world settings.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"825-841"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9581283","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

What biomechanical parameters are related to drag-flick performance in field hockey? A systematic review. 在曲棍球比赛中，哪些生物力学参数与拖击动作有关？系统回顾。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-05-25 DOI: 10.1080/14763141.2023.2212648

Bo-Jane Ladru, Tom Beddows, Rob Langhout, Maarten Gijssel, Igor Tak

{"title":"What biomechanical parameters are related to drag-flick performance in field hockey? A systematic review.","authors":"Bo-Jane Ladru, Tom Beddows, Rob Langhout, Maarten Gijssel, Igor Tak","doi":"10.1080/14763141.2023.2212648","DOIUrl":"10.1080/14763141.2023.2212648","url":null,"abstract":"The drag-flick is a highly relevant skill to enlarge scoring opportunities during penalty corners in field hockey. Understanding drag-flick biomechanics will likely assist in optimising training and performance of drag-flickers. The purpose of this study was to identify the biomechanical parameters related to drag-flicking performance. Five electronic databases were systematically searched from inception to 10 February 2022. Studies were included if quantified biomechanical parameters of the drag-flick were assessed and related to performance outcomes. Quality assessment of the studies was performed according to the Joanna Briggs Institute critical appraisal checklist. Study type, study design, participants' characteristics, biomechanical parameters, measurement instrumentation and results were extracted from all included studies. The search yielded 16 eligible studies (142 drag-flickers). Many different single kinematic parameters were associated with drag-flick performance and related to biomechanical aspects described in this study. Nonetheless, this review identified a lack of a solid body of knowledge on this topic due to a low number of studies as well as low study quality and strength of evidence. Future high-quality research is needed to develop a clear biomechanical blueprint of the drag-flick to better understand this complex motor skill.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"795-824"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9522548","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

Influence of surface condition and prolonged running on impact accelerations. 表面状况和长时间运行对冲击加速度的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-05-19 DOI: 10.1080/14763141.2023.2214519

Ignacio Catalá-Vilaplana, Alberto Encarnación-Martínez, Andrés Camacho-García, Roberto Sanchis-Sanchis, Pedro Pérez-Soriano

{"title":"Influence of surface condition and prolonged running on impact accelerations.","authors":"Ignacio Catalá-Vilaplana, Alberto Encarnación-Martínez, Andrés Camacho-García, Roberto Sanchis-Sanchis, Pedro Pérez-Soriano","doi":"10.1080/14763141.2023.2214519","DOIUrl":"10.1080/14763141.2023.2214519","url":null,"abstract":"Running can be performed on different types of surfaces with distinct characteristics. These differences between the running surfaces may affect impact accelerations during prolonged running. The aim of this study was to compare the effect of the type of running surface (motorised treadmill (MT), curved non-motorised treadmill (cNMT), and overground (OVG)) and prolonged running in impact accelerations, spatiotemporal parameters and perceptual variables. In the current study, twenty-one recreational runners completed three randomised crossover prolonged running test on these surfaces consisting of a 30-minute run at 80% of the individual maximal aerobic speed. A two-way repeated-measure analysis of variance, with the level of significance set at p < 0.05, showed a reduction in impact accelerations, such as tibia peak acceleration, when running on cNMT vs MT (p = 0.001, ES = 4.2) or OVG (p = 0.004, ES = 2.9). Running on cNMT produced an increase in stride frequency (p = 0.023, ES = 0.9) and higher rating of perceived effort (p < 0.001, ES = 8.9) and heart rate (p = 0.001, ES = 2.9) compared to OVG, with no differences between treadmills. These findings suggest that impact accelerations, spatiotemporal parameters, rating of perceived exertion and heart rate are different between the surfaces analysed, what should be taken into consideration when running on these surfaces.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1064-1078"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9858492","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

Evaluation of head kinematics experienced during common skill progression pathways in Women's Artistic Gymnastics. 评价在女子艺术体操常见的技术进步路径中头部的运动学经验。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-03-26 DOI: 10.1080/14763141.2025.2481154

N Stewart Pritchard, Kambrie M Brandt, Alexandra G Peluso, David W Kruse, Elspeth Hart, Heather P Carr, Garrett S Bullock, Christopher M Miles, Justin B Moore, Joel D Stitzel, Jillian E Urban

{"title":"Evaluation of head kinematics experienced during common skill progression pathways in Women's Artistic Gymnastics.","authors":"N Stewart Pritchard, Kambrie M Brandt, Alexandra G Peluso, David W Kruse, Elspeth Hart, Heather P Carr, Garrett S Bullock, Christopher M Miles, Justin B Moore, Joel D Stitzel, Jillian E Urban","doi":"10.1080/14763141.2025.2481154","DOIUrl":"https://doi.org/10.1080/14763141.2025.2481154","url":null,"abstract":"This study aimed to evaluate head kinematics experienced during skill progression pathways in Women's Artistic Gymnastics to inform post-concussion return to gymnastics protocols. A return to gymnastics framework, consisting of seven skill progression pathways, was developed. Twelve gymnasts were instrumented with mouthpiece sensors and performed two trials of each skill, if able. Sensors recorded data at 100 Hz and skill segments were extracted using time-synchronised video. Peak resultant linear (PLA) and rotational acceleration (PRA), rotational velocity change index (ΔRV) and peak resultant rotational velocity (PRV) of 1 Hz low pass filtered data were computed from skills. A mixed effects model evaluated differences in kinematic metrics across skills within pathways while adjusting for random effects of the participant. Stepwise increases in kinematic metrics occurred along backward and forward tumbling (floor) pathways but did not occur in other pathways. For instance, gymnasts experienced greater PLA and PRV during clear hip and back hip circle compared to giant. Moreover, skills performed early along respective pathways (e.g, Yurchenko timer (to back), Tsukahara timer (to back), handstand forward roll) were among the skills with the greatest PRA and ΔRV. Head kinematics associated with skill performance should be considered when developing return to gymnastics protocols.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-21"},"PeriodicalIF":2.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143711901","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 effect of sex, skill level and a defender on cutting kinematics in soccer players. 性别、技术水平和防守队员对足球运动员切球运动学的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-03-25 DOI: 10.1080/14763141.2025.2481496

Karen Chen, Harry Brown, Sophie Guilmette, Moreno Morelli, Anouk Lamontagne, Shawn M Robbins

{"title":"The effect of sex, skill level and a defender on cutting kinematics in soccer players.","authors":"Karen Chen, Harry Brown, Sophie Guilmette, Moreno Morelli, Anouk Lamontagne, Shawn M Robbins","doi":"10.1080/14763141.2025.2481496","DOIUrl":"10.1080/14763141.2025.2481496","url":null,"abstract":"Cutting patterns may be influenced by task complexity and player attributes, ultimately affecting injury risks. This study examines the impact of skill level, sex, and defender conditions on joint kinematics during unanticipated cutting in soccer players. Kinematic data were captured using a three-dimensional motion capture system for 14 competitive and 14 recreational players performing unanticipated sidesteps (45 ± 10 degrees) under three conditions: no obstacle (NO), static-defender obstacle (SO) and dynamic-defender obstacle (DO). Principal component (PC) analysis and hierarchical linear models examined joint kinematics against sex, skill and defender conditions. For the first component of PC, skill effects revealed greater ankle dorsiflexion angles throughout cutting in competitive players (p = 0.01) than recreational players. DO trials showed lower hip flexion (p = 0.001) and ankle dorsiflexion angles (p = 0.01) than NO. SO trials showed greater hip adduction (p < 0.001) and knee abduction angles (p = 0.04), but lower ankle dorsiflexion angles (p < 0.001) than NO. For PC2, SO trials showed greater hip flexion excursions (p = 0.005) than NO. No sex effects were found. Clearance (participant's distance to the defender) was examined using a three-way analysis of covariance. Greater distances were found in DO by 0.59 m than SO. Differences in cutting patterns highlight potential adaptations to varying defender pressures, providing insights for coaching and prevention programmes.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-18"},"PeriodicalIF":2.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143701865","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