Evaluation of postural control in quiet standing using center of mass acceleration: Comparison among the young, the elderly, and people with stroke
Evaluation of postural control in quiet standing using center of mass acceleration: Comparison among the young, the elderly, and people with stroke
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DOI：
10.1016/j.apmr.2007.10.047
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发表时间：
2008-06-01
影响因子：
4.3
通讯作者：
Nakazawa, Kimitaka
中科院分区：
文献类型：
--
作者：
Yu, Erkang;Abe, Masaki;Nakazawa, Kimitaka
目的：确定质心（COM）加速度在安静站立时姿势控制评估中的有用性。设计：三组比较设计。设置：一个研究实验室。参与者：中风后受试者（n=12），健康老年受试者（n=22），健康年轻受试者（n=25）。干预措施：不适用。主要结果测量：利用测力平台，通过使用COM加速度和压力中心（COP）和COM（COP-COM）的标准差来评估姿势摇摆，其中COP-COM表示COP和COM之间的距离。COM加速度和COP-COM变量在中风后组大于健康组（老年人和年轻人）的中外侧（ML）方向。在前后（AP）方向的两个变量在卒中后组和老年组中均大于年轻组。此外，各组在每个方向上的COM加速度与COP-COM之间的相关性均显示出显著高（r范围，.906-.979; P
Objective: To determine center of mass (COM) acceleration usefulness in the evaluation of postural control during quiet standing.Design: Three-group comparison design.Setting: A research laboratory.Participants: Poststroke subjects (n=12), healthy elderly subjects (n=22), and healthy young subjects (n=25).Interventions: Not applicable.Main Outcome Measures: With a force platform, postural sway was evaluated by using the standard deviations of COM acceleration and center of pressure (COP) and COM (COP-COM) in which COP-COM represents the distance between the COP and the COM.Results: COM acceleration and COP-COM variables were greater in the poststroke group than in the healthy groups (elderly and young) in the mediolateral (ML) direction. Both variables in the anteroposterior (AP) direction were greater in the poststroke group and the elderly group than in the young group. Furthermore, the correlations between COM acceleration and COP-COM in each group in each direction were shown to be significantly high (r range,.906-.979; P