CAJ | 학술논문

目的观察经测力板测得的健康年轻人稳定极限(LOS)的重测信度.方法采用测力板采集25例健康受试者直立时足底压力中心(COP)的信号.受试者站立时依次进行向前、向后、向左、向右倾斜身体,经过计算机软件分析后得到COP前、后、左、右各方向的最大位移,即LOS值.连续测量3次,1周后由同一名测试者再次进行上述测量.用组内相关系数(ICC)分析2周测量的重测信度.结果 2周测量的结果比较显示,用第1次测量得出的LOS值计算出的ICC值为0.790～0.857,用前2次测量得出的LOS平均值计算出的ICC值为0.906～0.937,用3次测量得出的LOS平均值计算出的ICC值为0.910～0.948.结论该LOS测试方法在健康年轻人中重测信度好,建议连续测量2次,取其平均值作为LOS值,以此评估年轻人平衡功能和姿势控制能力.
목적 관찰경측력판측득적건강년경인은정겁한(LOS)적중측신도.방법 채용측력판채집25례건강수시자직립시족저압력중심(COP)적신호.수시자참립시의차진행향전、향후、향좌、향우경사신체,경과계산궤연건분석후득도COP전、후、좌、우각방향적최대위이,즉LOS치.련속측량3차,1주후유동일명측시자재차진행상술측량.용조내상관계수(ICC)분석2주측량적중측신도.결과 2주측량적결과비교현시,용제1차측량득출적LOS치계산출적ICC치위0.790～0.857,용전2차측량득출적LOS평균치계산출적ICC치위0.906～0.937,용3차측량득출적LOS평균치계산출적ICC치위0.910～0.948.결론 해LOS측시방법재건강년경인중중측신도호,건의련속측량2차,취기평균치작위LOS치,이차평고년경인평형공능화자세공제능력.
Objective To estimate the test-retest reliability of limits of stability (LOS) measurement in healthy young adults. Methods Twenty-five healthy young adults participated this study.Their center of pressure (COP) displacements were recorded while they stood on a force platform.The subjects performed maximal voluntary sway maneuvers in the anterior,posterior,left and right directions in turn.The LOS in each direction was calculated using balance clinic software.Each subject underwent 3 consecutive,identical tests at 7 day intervals with the same investigator.The test-retest reliability of LOS was analyzed using the intraclass correlation coefficient (ICC).Results For the first test the ICC values ( ICC1 ) of the LOS ranged from 0.790 to 0.857.For the mean LOS of the first two tests the ICC2 ranged from 0.906 to 0.937,and for the mean LOS of three tests the ICC3 ranged from 0.910 to 0.948. Conclusion The LOS test is a reliable measurement with healthy young adults.In clinical practice,averaging two LOS tests is suggested in assessing balance and postural control with young adults.