Snook Erin M, Motl Robert W, Gliottoni Rachael C
Department of Kinesiology, University of Massachusetts Amherst, MA, USA.
Clin Rehabil. 2009 Mar;23(3):248-58. doi: 10.1177/0269215508101757.
To examine whether accelerometry provides a measure of physical activity, walking ability or both in a sample of individuals with multiple sclerosis. The secondary purpose was to examine the validity of physical activity measures in people with multiple sclerosis who have ambulatory impairments.
Forty-two individuals with multiple sclerosis without ambulatory impairment (Expanded Disability Status Scale (EDSS) score < or = 4.5) and 32 individuals with multiple sclerosis with ambulatory impairment (EDSS > or = 5.0).
Participants completed the Multiple Sclerosis Walking Scale-12 and Performance Scales, wore an accelerometer for seven days, and completed the Godin Leisure-Time Exercise Questionnaire and short-form of the International Physical Activity Questionnaire.
There were significant differences between groups on scores from the five measures. There were large correlations between the accelerometer counts with scores from both the self-report measures of physical activity and the self-report measures of walking mobility in the overall sample. There were large correlations between scores from both measures of physical activity in the overall sample and the subsample with ambulatory impairment.
Our data suggest that accelerometers are measuring both physical activity and walking mobility in individuals with multiple sclerosis, whereas self-report measures are measuring physical activity in individuals with multiple sclerosis, including those with ambulatory impairment.
研究加速度计能否测量多发性硬化症患者的身体活动、行走能力或两者兼而有之。次要目的是检验针对有行走障碍的多发性硬化症患者的身体活动测量方法的有效性。
42例无行走障碍的多发性硬化症患者（扩展残疾状态量表（EDSS）评分≤4.5）和32例有行走障碍的多发性硬化症患者（EDSS≥5.0）。
参与者完成多发性硬化症步行量表-12和性能量表，佩戴加速度计7天，并完成戈丁休闲时间运动问卷和国际身体活动问卷简表。
两组在这五项测量的得分上存在显著差异。在整个样本中，加速度计计数与身体活动自我报告测量得分以及行走能力自我报告测量得分之间存在高度相关性。在整个样本以及有行走障碍的子样本中，两种身体活动测量得分之间存在高度相关性。
我们的数据表明，加速度计可测量多发性硬化症患者的身体活动和行走能力，而自我报告测量方法可测量多发性硬化症患者（包括有行走障碍者）的身体活动。
