健康人坐-站-坐运动中姿势图参数的重测信度研究

Reliability of Posturographic Parameters Assessing Sit-to-stand Movements in Healthy Participants

目的:目前对于坐-站-坐过程并无很好的定量评价方法,本研究目的是评价姿势图参数在临床应用中的可靠性。方法:研究纳入了74名健康成年人,在平衡系统上分别进行坐位、站立位和坐-站-坐转移运动各20 s。运动结束后由系统自动计算出姿势图参数。测试分两次进行,第1次测试后的第7天进行第2次测试。结果:在坐位和站立位评定中,所评估的参数的组内相关系数都在0.5以上,具有较好的重测信度。在坐-站-坐之站立相评定中,所有参数的ICC都在0.4以上,具有较好的重测信度;在坐-站-坐之坐位相评定中,所有参数的ICC都在0.6以上,具有较好的重测信度。结论:坐-站-坐运动姿势图评价是一种新的评定方式,在正常人群中有较好的可重复性,能动态评价坐站转移过程中的姿势控制能力,之后需在患者群体中应用,以带来更好的功能评定和疗效评价。

Objective Currently,the sit-to-stand process is not well evaluated. The aim of the study is to evaluate quantitatively the reliability of posturographic parameters in the sit-to-stand process. Methods Seventy-four healthy participants were enrolled and required to finish 20-second sitting,standing and the sit-to-stand process. The computer calculated the posturographic parameters automatically. The test was repeated twice to assess the reliability at an interval of six days. Results During sitting and standing position, the intraclass correlation coefficients （ICCs） of all the parameters were above 0.50, indicating a good or fair reliability. During the standing stance and sitting phase of the sit-to- stand process, the ICCs of all the parameters were above 0.40 and 0.60 respectively, showing a good or fair reliability. Conclusions Sit-to-stand posturographic parameters are a new way to assess the position control ability among the healthy participants with a good reliability. Further study should be conducted among patients to result in better functional and effectiveness evaluation.