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首页> 外文期刊>Gait & posture >Ground contact characteristics of Tai Chi gait.
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Ground contact characteristics of Tai Chi gait.

机译：太极步态的地面接触特征。

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BACKGROUND:: To date, no direct measurement has been done that quantitatively characterizes the foot-ground contact during Tai Chi Chuan movements. The goal of this study was to quantify the biomechanical characteristics of foot-ground contact during a Tai Chi gait (TCG), one of the basic but common Tai Chi Chuan movements. METHODS:: The ground reaction force profiles, center of pressure (COP) and plantar pressure patterns under the stance foot of TCG were directly measured in a sample of 10 healthy young individuals. RESULTS:: The medial force reached a peak value of 12 +/- 2% body weight (BW) during early stance. The vertical force reached and maintained a peak value of 109 +/- 2% BW during single stance, and shifted within a range of 10% and 70% BW during double stance phases. There was a uniformly small rate of loading in all three directions throughout stance. The peak plantar pressure was fairly constant throughout stance in the rear-foot region (maximum value of 0.27 +/- 0.07kPa/kg), but changedfrom 0 to 0.16 +/- 0.04kPa/kg in the fore-foot region. The peak pressure difference between the fore-foot and rear-foot regions was less than 0.06 +/- 0.01kPa/kg during single stance and the second double stance. The maximum plantar contact area during TCG was 60 +/- 9% of the foot area. The foot COP displaced largely during the early and late part of the stance and maintained fairly stationary during single stance. The maximum COP displacement in the medial-lateral direction was 64 +/- 8% of foot width. CONCLUSIONS:: TCG had a low impact force, a fairly evenly distributed body weight between the fore-foot and rear-foot regions, and a large medial-lateral displacement of the foot COP.
机译：背景：迄今为止，尚未进行直接的测量来定量表征太极拳运动中脚与地面的接触。这项研究的目的是量化太极拳步态（TCG）期间脚底地面接触的生物力学特征，这是基本但常见的太极拳运动之一。方法：在10名健康的年轻个体的样本中，直接测量了地面反力分布，压力中心（COP）和足底压力模式下足底压力模式。结果：在早期站立过程中，中间力达到峰值12 +/- 2％体重（BW）。在单姿态下，垂直力达到并保持峰值109 +/- 2％BW，在双姿态阶段，垂直力在10％和70％BW范围内移动。在整个姿势中，在所有三个方向上的加载速率均较小。在后足区域，整个姿势的足底峰值压力都相当恒定（最大值为0.27 +/- 0.07kPa / kg），但在前脚区域从0变为0.16 +/- 0.04kPa / kg。在单姿势和第二双姿势期间，前脚和后脚区域之间的峰值压力差小于0.06 +/- 0.01kPa / kg。 TCG期间最大足底接触面积为足部面积的60 +/- 9％。足部COP在该姿势的早期和晚期发生很大位移，并且在单姿势期间保持相当稳定。在内侧-外侧方向上的最大COP位移为脚宽的64 +/- 8％。结论：TCG具有较低的冲击力，在前脚和后脚区域之间的体重相当均匀地分布，并且脚COP的内侧到外侧的位移较大。

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