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首页> 外文会议>Asia Pacific conference on biomechanics;International conference on biomedical engineering;ICBME;APBiomech;World congress of biomechanics;WCB 2010 >The Role of Footwear on Impact Forces and Soft Tissue Vibrations during Active and Passive Landings
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The Role of Footwear on Impact Forces and Soft Tissue Vibrations during Active and Passive Landings

机译：鞋类在主动和被动着陆过程中对冲击力和软组织振动的作用

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摘要

The aim of this study was to explore the effect of basketball shoes on impact forces, soft tissue vibrations, and their possible interactions during active landing (drop jump, DJ) and passive landing (PL). Six male basketball players wore two types of shoes (basketball shoe vs. control shoe) to execute 5 trials of double-leg landing in each of 6 testing conditions from a manual tiltable platform (i.e., 2 landing styles × 3 heights: 30 cm, 45 cm, and 60 cm). Kinematics of the lower extremity, ground reaction force data, and accelerations of the quadriceps femoris were collected simultaneously. The results showed that there was no significant shoe effect on the input signal for both the time domain and the frequency domain during DJ. However, during PL, the amplitude of impact and loading rate in basketball shoe were obviously smaller at each height (p<0.05); meanwhile, input frequency was also significantly lower for the basketball shoe condition than the control at 45 cm height (p<0.05). Furthermore, input frequency would move towards soft tissue vibration frequency and created a resonance situation (below 25 Hz). Findings of this study indicated that under the condition of related muscles were not be activated properly, the basketball shoe reduced the magnitude of impact, changed the input frequency, and kept away from the resonance frequency, which may further be enlightened and developed in performance and fatigue.
机译：这项研究的目的是探索篮球鞋对撞击力，软组织振动及其在主动着陆（下降跳跃，DJ）和被动着陆（PL）期间可能发生的相互作用的影响。六名男性篮球运动员穿着两种鞋（篮球鞋和控制鞋），分别在6个测试条件下从手动可倾斜平台执行5次双腿着陆测试（即2种着陆方式×3种高度：30厘米， 45厘米和60厘米）。同时收集下肢运动学，地面反作用力数据和股四头肌的加速度。结果表明，在DJ期间，输入信号在时域和频域上均没有明显的靴效应。然而，在PL期间，每个高度的篮球鞋的冲击幅度和负载率均明显较小（p <0.05）;同时，在45厘米高的情况下，篮球鞋条件下的输入频率也显着低于对照组（p <0.05）。此外，输入频率将朝着软组织振动频率移动并产生共振情况（低于25 Hz）。这项研究的结果表明，在相关肌肉没有被适当激活的情况下，篮球鞋减小了撞击的幅度，改变了输入频率，并远离共振频率，这可能会进一步启发和发展性能。疲劳。

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