Ko Young-Churl, Ryew Che-Cheong, Hyun Seung-Hyun
Department of Journalism and Public Relations, College of Social Science, Jeju National University, Jeju, Korea.
Department of Kinesiology, College of Natural Science, Jeju National University, Jeju, Korea.
J Exerc Rehabil. 2017 Feb 28;13(1):117-121. doi: 10.12965/jer.1732846.423. eCollection 2017 Feb.
The aim of this study was to analyze the relation between incline angle of whole body and kinematic variables at tripping during gait. The participants consisted of healthy adult female (n=6). The three-dimensional (3D) motion analysis of posture restoring after inducing tripping of right foot at supporting phase of left foot was performed. As a result, supporting time elapsed of one stride and one foot at tripping showed longer than that of normal gait. The length of one stride showed longer at tripping than that of normal gait, and velocity of center of gravity (COG) showed faster at tripping than that of normal gait. Anteriorposterior incline angle of whole body showed more forwarded incline at tripping than that of normal gait. As a result of correlation among variables, one stride and supporting time elapsed showed positive relation =0.973 ( =0.947, <0.001), also =0.920 ( =0.846, <0.001) relative to velocity of COG, =0.970 ( =0.941, <0.001) of 1-stride time elapsed relative to velocity of COG and =0.833 ( =0.613, <0.05) of velocity of COG relative to anteriorposterior incline angle respectively. Therefore instantaneous stoppage of gait posture when tripped at supporting phase of one leg during gait may be impossible and rather may cause a recovery of gait pattern when secured the faster velocity of COG and the longer of supporting time elapsed of one leg.
本研究旨在分析步态中绊倒时全身倾斜角度与运动学变量之间的关系。参与者为健康成年女性（n = 6）。对在左脚支撑期诱发右脚绊倒后恢复姿势的三维（3D）运动进行了分析。结果显示，绊倒时一步和单脚的支撑时间比正常步态更长。绊倒时一步的长度比正常步态更长，重心（COG）速度比正常步态更快。全身前后倾斜角度在绊倒时比正常步态更向前倾斜。变量间相关性分析结果显示，一步与支撑时间呈正相关 =0.973（ =0.947，<0.001），相对于COG速度也为 =0.920（ =0.846，<0.001），一步时间相对于COG速度为 =0.970（ =0.941，<0.001），COG速度相对于全身前后倾斜角度为 =0.833（ =0.613，<0.05）。因此，在步态中一条腿支撑期绊倒时，步态姿势可能无法瞬间停止，相反，当保证COG速度更快且一条腿支撑时间更长时，可能会导致步态模式的恢复。
