Monday May 29th 2017

Reliability of physical-activity measures over six months in adults with multiple sclerosis: implications for designing behavioral interventions.

This study involved a secondary data analysis for providing reliability estimates for measures of physical activity over a six-month period in MS. On two occasions separated by six months, participants completed the Godin Leisure-Time Exercise Questionnaire (GLTEQ) and wore an ActiGraph model 7164 accelerometer on a belt around the waist for a seven-day period. The outcomes from the accelerometer were total activity counts and minutes of moderate-to-vigorous physical activity (MVPA) per day. The main analyses involved two-way, random effects intraclass correlation coefficients (ICCs). The ICCs for GLTEQ scores, total activity counts, and minutes of MVPA were .66, .84, and .84, respectively. Additionally, the sample was less physically active than adults without MS, and correlation analyses…

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Reliability of physical-activity measures over six months in adults with multiple sclerosis: implications for designing behavioral interventions.

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