Sports Biomechanics最新文献_第7页

Comparison of marker-less and marker-based motion capture for baseball pitching kinematics. 棒球投球运动学中无标记和基于标记的运动捕捉的比较。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2022-05-19 DOI: 10.1080/14763141.2022.2076608

Glenn S Fleisig, Jonathan S Slowik, Derek Wassom, Yuki Yanagita, Jasper Bishop, Alek Diffendaffer

{"title":"Comparison of marker-less and marker-based motion capture for baseball pitching kinematics.","authors":"Glenn S Fleisig, Jonathan S Slowik, Derek Wassom, Yuki Yanagita, Jasper Bishop, Alek Diffendaffer","doi":"10.1080/14763141.2022.2076608","DOIUrl":"10.1080/14763141.2022.2076608","url":null,"abstract":"The purpose of this study was to compare baseball pitching kinematics measured with marker-less and marker-based motion capture. Two hundred and seventy-five fastball pitches were captured at 240 Hz simultaneously with a 9-camera marker-less system and a 12-camera marker system. The pitches were thrown by 30 baseball pitchers (age 17.1 ± 3.1 years). Data for each trial were time-synchronised between the two systems using the instant of ball release. Coefficients of Multiple Correlations (CMC) were computed to assess the similarity of waveforms between the two systems. Discrete measurements at foot contact, during arm cocking, and at ball release were compared between the systems using Bland-Altman plots and descriptive statistics. CMC values for the five time series analysed ranged from 0.88 to 0.97, indicating consistency in movement patterns between systems. Biases for discrete measurements ranged in magnitude from 0 to 16 degrees. Standard deviations of the differences between systems ranged from 0 to 14 degrees, while intraclass correlations ranged from 0.64 to 0.92. Thus, the marker-based and marker-less motion capture systems produced similar patterns for baseball pitching kinematics. However, based on the variations between the systems, it is recommended that a database of normative ranges be established for each system.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":"1 1","pages":"2950-2959"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45090295","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

Usage and acceptability of data normalization in baseball pitching. 棒球投球中数据规范化的使用和可接受性。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-01-12 DOI: 10.1080/14763141.2024.2302830

Kevin A Giordano, Adam J Barrack, William M Murrah, Andrew R Karduna, Lori A Michener, Kyle W Wasserberger

{"title":"Usage and acceptability of data normalization in baseball pitching.","authors":"Kevin A Giordano, Adam J Barrack, William M Murrah, Andrew R Karduna, Lori A Michener, Kyle W Wasserberger","doi":"10.1080/14763141.2024.2302830","DOIUrl":"10.1080/14763141.2024.2302830","url":null,"abstract":"In baseball pitching biomechanics, kinetic values are commonly ratio 'normalised' by dividing by mass or mass*height to allow for comparison between athletes of different sizes. However, creating a normalised ratio variable should meet certain statistical assumptions. Our purpose was to determine if elbow valgus torque predicted by pitching velocity is influenced by normalisation using regression model comparison with and without normalised torque values. Motion capture data for youth to professional pitchers (n = 1988) were retrospectively analysed. Normalisation assumptions were tested by comparing linear regression models to analogous models with an intercept fixed at zero and by examining remaining correlations between the confounding variable and new, normalised variable. Both mass (p < 0.001) and mass*height (p < 0.001) normalisation did not remove their respective relationship with torque. After accounting for mass or mass and height, velocity predicted 10% of variance in elbow valgus torque, whereas velocity predicted 59% of mass normalised torque and 45% of mass*height normalised torque. Ratio normalisation does not fully account for anthropometric variables that differ across pitchers and leads to different conclusions in the magnitude of velocity's predictive effect on elbow valgus torque. Therefore, we recommend using regression model comparison to account for anthropometric variables in baseball pitching kinetic data.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3430-3441"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139425877","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

A biomechanical comparison of track spikes with advanced footwear technology to a traditional track spike in female distance runners. 采用先进鞋类技术的田径钉鞋与传统田径钉鞋在女性长跑运动员中的生物力学比较。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-08-27 DOI: 10.1080/14763141.2024.2393199

Christina Geisler, J J Hannigan

{"title":"A biomechanical comparison of track spikes with advanced footwear technology to a traditional track spike in female distance runners.","authors":"Christina Geisler, J J Hannigan","doi":"10.1080/14763141.2024.2393199","DOIUrl":"10.1080/14763141.2024.2393199","url":null,"abstract":"The addition of highly responsive lightweight foam and a stiff plate in the midsole of long-distance road racing shoes has yielded significant energetic cost savings that have translated to notable improvements in performance. This new foam and stiff plate technology have since been implemented in long-distance track spikes, where performances have also improved. However, the impact of spikes with advanced footwear technology (AFT) on distance running biomechanics has been studied minimally to date. Therefore, the purpose of this study was to compare running biomechanics between two spikes which incorporate AFT (Nike ZoomX Dragonfly, Nike Air Zoom Victory) to a traditional spike (Nike Zoom Matumbo). Seventeen competitive collegiate female runners completed 60 m trials at their 5k race pace in each spike condition while outfitted with IMU sensors and plantar pressure insoles. We observed significantly lower peak ankle dorsiflexion in the Dragonfly and Victory compared to the Matumbo and lower whole foot, forefoot and rearfoot peak and average pressure in the Dragonfly compared to the Matumbo and Victory. The acute biomechanical alterations observed in this study warrant future investigation into the association between running biomechanics and racing performance in track spikes with advanced footwear technology.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3667-3679"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142082348","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 full-body weight-bearing on palmar pressure distribution in collegiate-level gymnasts. 全身负重对大学生体操运动员手掌压力分布的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-11-07 DOI: 10.1080/14763141.2024.2424389

Noah M Scigliano, Jessica E Goetz, Ignacio Garcia Fleury, Kevin N Dibbern, Krit Petrachaianan, Joseph A Buckwalter V

{"title":"The effect of full-body weight-bearing on palmar pressure distribution in collegiate-level gymnasts.","authors":"Noah M Scigliano, Jessica E Goetz, Ignacio Garcia Fleury, Kevin N Dibbern, Krit Petrachaianan, Joseph A Buckwalter V","doi":"10.1080/14763141.2024.2424389","DOIUrl":"10.1080/14763141.2024.2424389","url":null,"abstract":"Wrist and hand biomechanics under full-body load are not fully understood. To identify potential anatomy-related differences in hand loading, 15 former collegiate athletes completed a 45-second handstand on a novel emed® pressure platform system. Center of pressure (CoP) and force distribution across the palmar surface were analysed during the stabilised phase. Maximum force, mean pressure, and contact area were calculated in four palmar anatomic subregions: hypothenar, thenar, metacarpals, and fingers. These values were related to ulnar variance measurements obtained from a participant handstand hold in a weight-bearing computed tomography machine. About 93% of participants shifted their CoP towards their dominant hand (p < 0.001), and among all participants, the dominant hand applied an average of 8.91% (p = 0.002) higher maximum force than the nondominant hand. The proportion of total mean force was highest in the hypothenar (47.1%) and thenar regions (36.5%). Every 1.00 mm increase in ulnar variance corresponded to a 2.8% increase in maximum force in the hypothenar region (p = 0.037). This investigation emphasises the role of gymnastics hand dominance on left/right hand weight distribution and the importance of the hypothenar zone in distributing pressure during handstands. It also indicates that force transmission through the wrist to the palm is contingent on radioulnar positioning.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3301-3311"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142607246","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 swimming velocity between age-group swimmers through discrete variables and continuous variables by Statistical Parametric Mapping. 用统计参数映射的离散变量和连续变量比较不同年龄组游泳者的游泳速度。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2023-08-01 DOI: 10.1080/14763141.2023.2241845

Jorge E Morais, Tiago M Barbosa, Tiago Lopes, Shin-Ichiro Moriyama, Daniel A Marinho

{"title":"Comparison of swimming velocity between age-group swimmers through discrete variables and continuous variables by Statistical Parametric Mapping.","authors":"Jorge E Morais, Tiago M Barbosa, Tiago Lopes, Shin-Ichiro Moriyama, Daniel A Marinho","doi":"10.1080/14763141.2023.2241845","DOIUrl":"10.1080/14763141.2023.2241845","url":null,"abstract":"The aim of this study was to compare the swimming velocity in front-crawl between age-group swimmers using discrete variables against Statistical Parametric Mapping (SPM). The sample consisted of 30 young male swimmers divided into three groups (each with 10 swimmers) based on their age (group #1: 13.60 ± 0.84 years; group #2: 15.40 ± 0.32 years; group 3: 16.39 ± 0.69 years). Swimmers performed three maximal trials in front-crawl. The best performance was used for analysis. Comparison of swimming velocity between groups was analysed using discrete variables and as a continuous variable (SPM). As a discrete variable, the mean swimming velocity showed a significant difference between groups (p < 0.05). Moreover, when analysed by SPM, swimming velocity showed a significant difference (p = 0.021) between the ~ 44% and ~ 51% of the stroke cycle (transition of the propulsion phases between sides). Post-hoc comparison revealed a significant difference between group #1 and group #3 only in SPM analysis. Researchers, coaches, and practitioners should know that both measurement approaches can be used simultaneously. However, SPM offers more sensitive and accurate results about the swimmers' stroke cycle.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3394-3405"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9908800","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

Effectiveness of a 3D bike fitting method in riding pain, fatigue and comfort: a randomised controlled clinical trial. 三维自行车装配法对骑行疼痛、疲劳和舒适度的影响：随机对照临床试验。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2023-02-27 DOI: 10.1080/14763141.2023.2173084

Rodrigo Rico Bini

引用次数: 0

Effects of dominance and vision on unipedal balance tests in futsal players using a triaxial accelerometer. 使用三轴加速度计进行的五人制足球运动员单足平衡测试中优势和视力的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-01-09 DOI: 10.1080/14763141.2024.2301987

Juan Guerrero-Henriquez, Guillermo Mendez-Rebolledo, Leandro LLancaleo, Martin Vargas

{"title":"Effects of dominance and vision on unipedal balance tests in futsal players using a triaxial accelerometer.","authors":"Juan Guerrero-Henriquez, Guillermo Mendez-Rebolledo, Leandro LLancaleo, Martin Vargas","doi":"10.1080/14763141.2024.2301987","DOIUrl":"10.1080/14763141.2024.2301987","url":null,"abstract":"Optimal postural control improves performance and reduces the risk of injury in futsal. In this context, wearable accelerometers may detect velocity changes of the centre of mass during a task, enabling the analysis of postural control in different environments. This work aimed to determine the influence of vision and dominance on unipodal static postural balance in non-professional athletes. Twenty-four university male futsal players performed a unipodal balance test to assess their body sway using a triaxial accelerometer. To assess dominance, the preferred limb for kicking the ball was considered, while vision was manipulated by asking participants to close their eyes during the test. Root mean square (RMS) and sample entropy (SaEn) of centre of mass variables were analysed. For statistical analysis, a multivariate analysis of variance model was used. Our results suggest an effect of vision, but not of dominance nor the interaction between vision and limb dominance. Specifically, a higher-acceleration RMS in the mediolateral axis was observed, as well as an increased SaEn in the three axes. To conclude, unipodal postural demand in futsal players under visual input suppression was not influenced by their limb dominancy.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3161-3170"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139404953","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

On the necessity for biomechanics research in esports. 电子竞技生物力学研究的必要性。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-05-15 DOI: 10.1080/14763141.2024.2354440

Antoine Dupuy, Mark J Campbell, Andrew J Harrison, Adam J Toth

引用次数: 0

Bilateral differences of isokinetic knee extensor strength are velocity- and task-dependent. 等速膝关节伸肌力量的双侧差异取决于速度和任务。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-02-08 DOI: 10.1080/14763141.2024.2315260

Sebastian Möck, Klaus Wirth

{"title":"Bilateral differences of isokinetic knee extensor strength are velocity- and task-dependent.","authors":"Sebastian Möck, Klaus Wirth","doi":"10.1080/14763141.2024.2315260","DOIUrl":"10.1080/14763141.2024.2315260","url":null,"abstract":"The purpose of this study was to investigate the concordance of isokinetic bilateral strength differences of the knee extensors in single- and multi-joint movement tasks. One hundred and nineteen male athletes performed isokinetic legpresses at 0.1 m/s and 0.7 m/s as well as isokinetic knee extensions at 60°/s and 180°/s. Bilateral differences and directed bilateral differences (sign indicating the direction of the difference) were calculated for all measurements. Bland-Altman-Plots were plotted to investigate if the different conditions detect bilateral differences of the same magnitude. Additionally, concordance correlations for the directed bilateral differences of the different tests were calculated to investigate magnitude and direction. The results indicate poor to fair concordance between the bilateral differences in the legpress conditions as well as between single- and multi-joint tasks. The single-joint knee extensions displayed a moderate level of agreement. Bilateral strength differences in isokinetic movement tasks are dependent on movement velocity and the nature of the task (single- or multi-joint movement) in the lower extremities. Both the value and the direction of the strength differences show no clear pattern across the investigated measurements and cannot be used interchangeably. Therefore, to assess interlimb strength balance, multiple different tests should be performed.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3641-3653"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139703886","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

Reliability of consumer applied wearable sensor for kinematic and kinetic analysis of overhand pitching. 消费者应用的可穿戴式传感器用于俯仰运动和动力学分析的可靠性。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2025-01-06 DOI: 10.1080/14763141.2024.2446170

Jacob A Yarbrough-Jones, Sarah P Shultz, Brittany Heintz Walters

{"title":"Reliability of consumer applied wearable sensor for kinematic and kinetic analysis of overhand pitching.","authors":"Jacob A Yarbrough-Jones, Sarah P Shultz, Brittany Heintz Walters","doi":"10.1080/14763141.2024.2446170","DOIUrl":"10.1080/14763141.2024.2446170","url":null,"abstract":"The PULSE workload monitor (PULSE) is a commercially available, wearable device that assesses upper extremity kinematics and kinetics during overhand pitching with three metrics to improve pitching performance. The purpose of this study was to determine the inter-tester and intra-tester reliability of the PULSE metrics when applied by a lay consumer versus trained researcher. A total of 14 healthy, adult male (age: 44.21 ± 17.54 years) baseball players were fitted with the PULSE under two application conditions, participant application and researcher application of the device. Each participant performed seven pitches of three pitch types, including fastball, curveball, and change-up, per application condition. The protocol was repeated during a second session one week later. Intraclass correlation coefficients (ICC) were determined to examine inter-tester and intra-tester reliability of the PULSE metrics between placement conditions and across sessions. For all pitch types, inter-tester reliability (ICC > 0.758) and intra-tester reliability (participant application: ICC > 0.710; researcher application: ICC > 0.890) were strong, indicating that the device is reliable when placed by a lay consumer. Findings suggest that PULSE may serve as an easily accessible, wearable device for reproducing pitching metrics that can inform consumer training.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3181-3190"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142933279","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