仪器化360°转身测试在认知障碍老年人中的有效性
Validity of Instrumented 360° Turn Test in Older Adults with Cognitive Impairment.
作者信息
McGough Ellen L, Gries Molly, Teri Linda, Kelly Valerie E
机构信息
Department of Rehabilitation Medicine, University of Washington, Seattle, Washington, USA.
Department of Psychosocial & Community Health, School of Nursing, University of Washington, Seattle, Washington, USA.
出版信息
Phys Occup Ther Geriatr. 2021;38(2):170-184. doi: 10.1080/02703181.2019.1710319. Epub 2020 Jan 8.
AIMS
To examine concurrent and construct validity of inertial sensor 360°turn measures in relation with motion capture and mobility assessments in cognitively impaired older adults.
METHODS
Data was collected in 31 participants, mean age 85.2 ( 5.2), during clockwise (CW) and counter clockwise (CCW) 360° turns using (1) APDM body-worn inertial sensors and (2) Qualisys 8-camera laboratory-based motion capture.
RESULTS
Absolute agreement between inertial sensor and motion capture measures was excellent for turn duration and turn peak velocity (ICC = 0.96-0.98). Strong to moderate correlations were present between inertial sensor turn measures and performance on the Timed Up and Go, Short Physical Performance Battery and 90-s Balance Test. ROC curve analysis of CCW 360° turn duration and turn peak velocity distinguished higher risk versus lower risk for mobility disability.
CONCLUSIONS
Inertial sensor 360° turn measures demonstrated concurrent and construct validity in relation to motion capture and mobility assessments.
目的
探讨认知功能受损的老年人中，惯性传感器360°转身测量与动作捕捉和活动能力评估之间的同时效度和结构效度。
方法
对31名平均年龄85.2岁（5.2）的参与者进行研究，在其进行顺时针（CW）和逆时针（CCW）360°转身时，使用（1）APDM可穿戴式惯性传感器和（2）基于实验室的Qualisys 8摄像头动作捕捉系统收集数据。
结果
惯性传感器测量结果与动作捕捉测量结果在转身持续时间和转身峰值速度方面的绝对一致性极佳（组内相关系数ICC = 0.96 - 0.98）。惯性传感器的转身测量结果与计时起立行走测试、简短体能测试电池和90秒平衡测试的表现之间存在强到中度的相关性。逆时针360°转身持续时间和转身峰值速度的ROC曲线分析区分了活动能力残疾的高风险和低风险。
结论
惯性传感器360°转身测量在动作捕捉和活动能力评估方面显示出同时效度和结构效度。
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