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标题：The Effect of Leg Length Inequality on Dinamics of the Human Body's Center of Gravity in Nomal Walking
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作者：Hideto KANZAKI ; Tohru YORIOKA ; Minoru NAKAMURA 等
期刊名称：Journal of exercise physiology
印刷版ISSN：0912-7100
出版年度：1993
卷号：8
期号：2
页码：103-109
DOI：10.1589/rika1986.8.103
出版社：The Society of Physical Therapy Science
摘要：Leg length inequality (LLI) was artificially made by placing a rubber sole of 1 - 5cm high under a left foot of four healthy adults, and they were ordered to walk on the force place. Gait parameters examined consisted of speed and time factors, ground reaction forces, displacements of the body's center of gravity(COG), displacement volume, and the total walk of COG done per unit mass and distance walked. The effects of LLI and individual difference on those parameters were statistically analyzed. It was found that most of speed and time factors were possible affected by the LLI, but the variation of these factors by the LLI were minimum. The vertical displacement width was found to become longer by the approximately 3 cm due to the 5 cm LLI. On the other hand, the lateal and force-aft displacement widths were not affected by the LLI. The total work of COG done per unit mass and distance walked was increased in the gait with LLI of 4 cm and over. It was suggested that the LLI less than 4 cm have little effect on mechanical efficiency of gait.
关键词：Leg length inequality; Gait analysis; Center of gravity