棒球击球中上肢时间对球头速度产生的优化模拟。

IF 1.1 4区 医学 Q4 ENGINEERING, BIOMEDICAL
Kazumichi Ae, D. Burke, T. Kawamura, S. Koike
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引用次数: 1

摘要

本研究的目的是:(1)研究棒球击球时上肢关节运动的时机对球棒速度的影响;(2)开发并评估一个输入单个手对球棒的力的仿真模型。23名男子大学棒球运动员在腰部高度进行了击球。利用标准运动坐标数据驱动由蝙蝠和上半身组成的10段角驱动仿真模型。通过改变上肢关节角度时程的计时,提高最大球头速度,进行性能优化。该优化方法同时通过依赖于总杆力的多项式近似来估计单个手的力,从而评估上肢关节力矩。蝙蝠头运动速度由35.6 m/s提高到39.2 m/s,最佳动作时机表现为肘关节旋后、腕关节桡侧屈曲、躯干右外侧屈曲较早,肩关节外展较晚。由此得出结论,通过对近端到远端运动的有效排序,上身单个关节运动的熟练协调可以产生更高的蝙蝠头速度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimized Simulation of Upper Body Timing on the Production of Bat-Head Speed in Baseball Batting.
The objectives of this study were to (1) investigate the effect of the timing of the upper body joint motions in baseball batting on the bat-head speed and (2) develop and evaluate a simulation model inputting the individual hand forces on the bat. Twenty-three male collegiate baseball players performed tee batting set at waist height. A 10-segment angle-driven simulation model consisting of a bat and upper body was driven using the coordinate data of the standard motion. Performance optimization was conducted by changing the timing of the joint angle time histories of the upper body to increase the maximum bat-head speed. The optimization simultaneously estimated the individual hand forces by polynomial approximation dependent on the total bat forces to assess joint torques of the upper body. The bat-head speed increased to 39.2 m/s from 35.6 m/s, and the optimized timings were characterized by the earlier timing of the barrel-side elbow supination, wrist radial flexion, torso right lateral flexion, and the later timing of the barrel-side shoulder abduction. It is concluded that the skillful coordination of the individual joint movements for the upper body can produce a higher bat-head speed through effective sequencing of proximal to distal movements.
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来源期刊
Journal of Applied Biomechanics
Journal of Applied Biomechanics 医学-工程:生物医学
CiteScore
2.00
自引率
0.00%
发文量
47
审稿时长
6-12 weeks
期刊介绍: The mission of the Journal of Applied Biomechanics (JAB) is to disseminate the highest quality peer-reviewed studies that utilize biomechanical strategies to advance the study of human movement. Areas of interest include clinical biomechanics, gait and posture mechanics, musculoskeletal and neuromuscular biomechanics, sport mechanics, and biomechanical modeling. Studies of sport performance that explicitly generalize to broader activities, contribute substantially to fundamental understanding of human motion, or are in a sport that enjoys wide participation, are welcome. Also within the scope of JAB are studies using biomechanical strategies to investigate the structure, control, function, and state (health and disease) of animals.
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