脚踝
地面反作用力
接头(建筑物)
碰撞
膝关节
灵活性(工程)
膝关节屈曲
影响
物理医学与康复
数学
物理
计算机科学
医学
运动学
结构工程
工程类
解剖
外科
统计
经典力学
计算机安全
作者
Li-I Wang,Chin-Yi Gu,I‐Lin Wang,Sheng-Wun Siao,Szu-Ting Chen
标识
DOI:10.1080/14763141.2016.1249938
摘要
The purpose of this study was to compare the lower extremity inter-joint coordination of different collision forces runners during running braking phase. A dynamical system approach was used to analyse the inter-joint coordination parameters. Data were collected with six infra-red cameras and two force plates. According to the impact peak of the vertical ground reaction force, twenty habitually rearfoot-strike runners were categorised into three groups: high collision forces runners (HF group, n = 8), medium collision forces runners (MF group, n = 5), and low collision forces runners (LF group, n = 7). There were no significant differences among the three groups in the ankle and knee joint angle upon landing and in the running velocity (p > 0.05). The HF group produced significantly smaller deviation phase (DP) of the hip flexion/extension-knee flexion/extension during the braking phase compared with the MF and LF groups (p < 0.05). The DP of the hip flexion/extension-knee flexion/extension during the braking phase correlated negatively with the collision force (p < 0.05). The disparities regarding the flexibility of lower extremity inter-joint coordination were found in high collision forces runners. The efforts of the inter-joint coordination and the risk of running injuries need to be clarified further.
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