Evaluation of wrist and hip sedentary behaviour and moderate-to-vigorous physical activity raw acceleration cutpoints in older adults
Sanders, 2019
Description
Cut-points for classifying physical activity intensity from Euclidean Norm Minus One (ENMO) were generated using receiver operating characteristics (ROC) analysis in older, community-dwelling adults wearing GENEActiv and ActiGraph monitors on the non-dominant wrist and hip, respectively. Sensitivity and specificity ranged from 43 to 94% and 65 to 99%, respectively.
Development/Validation
Sample: 34 older adults (≥60 y)
Setting: Laboratory
Activities: Activities of daily living, stationary, stepping, treadmill walking
Criterion: MetaMax 3B-R2 (VO2)
Accelerometer(s): GENEActiv on non-dominant wrist, ActiGraph GT3X+
Validation approach: Holdout (50% of participants from each visit)
Instructions
ENMO was calculated per 1-sec following auto-calibration. Cut-points (below) were developed using the Youden index (maximizing sensitivity plus specificity) and by maximizing sensitivity for sedentary behavior, but specificity for moderate-to-vigorous physical activity.
Source Information
Reference:
Sanders, G. J., Boddy, L. M., Sparks, S. A., Curry, W. B., Roe, B., Kaehne, A., & Fairclough, S. J. (2019). Evaluation of wrist and hip sedentary behaviour and moderate-to-vigorous physical activity raw acceleration cutpoints in older adults. Journal of Sports Sciences, 37(11), 1270-1279. https://doi.org/10.1080/02640414.2018.1555904 Link to Paper
Corresponding author: George Sanders, george.sanders2@go.edgehill.ac.uk
Contact
Kimberly Clevenger at accelerometerrepository@gmail.com