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首页> 外文会议>International Symposium on Biomechanics in Sports vol.1; 20050822-27; Beijing(CN) >BIOMECHANICAL ANALYSIS ON TAKE-OFF TECHNIQUE OF CHINESE AND WORLD-CLASS TRIPLE-JUMPERS
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BIOMECHANICAL ANALYSIS ON TAKE-OFF TECHNIQUE OF CHINESE AND WORLD-CLASS TRIPLE-JUMPERS

机译：中国和世界级三级跳远运动员起跳技术的生物力学分析

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摘要

The triple jump is a demanding field event in which a jumper must tolerate extremely high impact forces while maintaining high horizontal speed. The present study was designed to explore the take-off technique how to maintain high horizontal speed and achieve optimize effect in the hop, step and jump phases. The best performance of 8 China triple-jumpers (mean performance was 16.01 m) were videotaped and analyzed. This paper compared the parameter with the technique of 18.29 m jump of Edwards in the 1995 WAC. The results showed that bigger push-off angle at toe off resulted in a high angled trajectory in the hop phase and increasing amortization difficulty of the step phase; earlier knee-bend made for less braking angle and loss of horizontal velocity; in the step and jump phase. Chinese jumpers bend the landing knee actively to lessen the forces from landing but delayed the drive into the push-off phase.
机译：三级跳远是一项要求很高的野外比赛，其中跳线运动员必须承受极高的冲击力，同时保持较高的水平速度。本研究旨在探讨起飞技术如何在跳，步和跳阶段保持较高的水平速度并实现最佳效果。录像并分析了8个中国三级跳远运动员的最佳表现（平均表现为16.01 m）。本文将参数与1995年WAC中Edwards跳高18.29 m的技术进行了比较。结果表明，较大的脚趾下推角导致跳跃阶段的高角度轨迹，增加了阶跃阶段的摊销难度。较早地弯曲膝盖以减小制动角度并降低水平速度；在步进和跳跃阶段。中国跳投者积极弯曲着陆膝盖，以减轻着陆时的力量，但将击球推迟到下推阶段。

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