Lower limb joint moment during walking in water
Lower limb joint moment during walking in water
复制标题
水中行走时下肢关节力矩
DOI：
10.1080/09638280310001603974
复制
发表时间：
2003
影响因子：
2.2
通讯作者：
M. Akai
中科院分区：
文献类型：
--
作者：
T. Miyoshi;Takashi Shirota;Shin;K. Nakazawa;M. Akai
目的：水中行走是骨科疾病或关节炎患者广泛使用的康复方法，因为人们相信水中重量的减轻使其成为一种更安全的介质，并防止下肢关节的继发性损伤。 然而，据我们所知，没有实验数据的下肢关节力矩在水中行走。本研究的目的是量化的踝关节，膝关节和髋关节的时刻在水中行走与那些在陆地上相比。方法：8名健康志愿者以舒适的速度在陆地和水中行走。 采用视频运动分析系统和防水测力平台获取运动学数据，计算关节力矩。结果：髋关节力矩被证明是一个伸展力矩几乎整个站立阶段在水中行走，而从伸展到屈曲方向在陆地上行走。 膝关节力矩在陆地行走时有两个伸展峰，而在水中行走时只有一个伸展峰，而且是晚峰。在水中行走的踝关节力矩大大减少，但在同一方向，跖屈，在陆地上行走。结论：在水中行走时，髋关节、膝关节和踝关节的力矩不仅减少，而且关节间的协调性也完全改变。
Purpose: Walking in water is a widely used rehabilitation method for patients with orthopedic disorders or arthritis, based on the belief that the reduction of weight in water makes it a safer medium and prevents secondary injuries of the lower-limb joints. To our knowledge, however, no experimental data on lower-limb joint moment during walking in water is available. The aim of this study was to quantify the joint moments of the ankle, knee, and hip during walking in water in comparison with those on land. Method: Eight healthy volunteers walked on land and in water at a speed comfortable for them. A video-motion analysis system and waterproof force platform were used to obtain kinematic data and to calculate the joint moments. Results: The hip joint moment was shown to be an extension moment almost throughout the stance phase during walking in water, while it changed from an extension- to flexion-direction during walking on land. The knee joint moment had two extension peaks during walking on land, whereas it had only one extension peak, a late one, during walking in water. The ankle joint moment during walking in water was considerably reduced but in the same direction, plantarflexion, as that during walking on land. Conclusions: The joint moments of the hip, knee, and ankle were not merely reduced during walking in water; rather, inter-joint coordination was totally changed.