Sex and age differences of relationships among stepping parameters for evaluating dynamic balance in the elderly
Sex and age differences of relationships among stepping parameters for evaluating dynamic balance in the elderly
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DOI：
10.2114/jpa2.27.207
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发表时间：
2008-07-01
影响因子：
3.1
通讯作者：
Yamaji, Shunsuke
中科院分区：
文献类型：
--
作者：
Demura, Shinichi;Sohee, Shin;Yamaji, Shunsuke
本研究旨在探讨老年人不同步态参数、性别和年龄之间的关系。日本60~85岁健康老年人(男50人，女61人)对20名S进行了4种踏步动作，包括双侧踏步(前后、右/左)和单侧踏步(前后、右/左)。用脚踏开关片测量步数、每一步的平均接脚时间、双脚同时着地的平均时间(双侧接脚时间)。7085岁(男：0.67，女：0.68)老年人双侧后退/前行测验中，除双侧连接时间外，其余测验信度均在0.86以上。随着年龄的增长，步数显著减少，所有步态测试的平均连接时间和双侧连接时间均缩短。双侧左右行走的连接时间、双侧前后行走和单侧左右行走测试的步数均存在显著的性别差异。双侧右/左和后退/前后步数和平均连接时间呈高度相关(r=0.71~0.94)，单侧后退/前进和右/左步数与平均连接时间高度相关(r=0.87~0.99)。双侧和单侧踏步运动的平均连接时间存在显著的相关性(r=0.51~0.83)，但从重心摆动的角度来看，两者具有不同的运动特性。双侧连接时间与双侧踏步步数的相关性相对较低(男性：垂直杆或垂直杆
This study aimed to examine the relationships among various stepping parameters, sex, and age in the elderly. Healthy elderly Japanese individuals 60-85 years old (50 males and 61 females) performed 4 types of stepping motions for 20 s. Stepping motions included bilateral stepping (back/forth and right/left) and unilateral stepping (back/forth and right/left). The number of steps, the average connecting time of a foot during one step, and the average time of both feet touching the floor at the same time (bilateral connecting time) were measured with a foot switch sheet. The trial-to-trial reliability was very high (above 0.86) except for the bilateral connecting time in the bilateral stepping back/forth test for 7085 year olds (males: 0.67, females: 0.68). With age, the number of steps was significantly smaller, and the average connecting time and the bilateral connecting time were shorter in all stepping tests. There were significant sex differences in bilateral connecting time for bilateral stepping right and left and the number of steps for the bilateral stepping back and forth and the unilateral stepping right and left tests. The number of steps and average connecting time showed high correlations between bilateral stepping right/left and back/forth (r=0.71-0.94) and between unilateral stepping back/forth and right/left (r=0.87-0.99). There were significant correlations of the average connecting time between bilateral and unilateral stepping motions (r=0.51-0.83), but both stepping motions are considered to have different motion properties from the viewpoint of center of gravity sway. The correlations between the bilateral connecting time and the number of steps in bilateral stepping were relatively low (males: vertical bar r vertical bar