Medicine and Health Sciences Commons^™

A Consensus Method For Estimating Physical Activity Levels In Adults Using Accelerometry, Kimberly A. Clevenge, Kelly A. Mackintosh, Melitta A. Mcnarry, Karin A. Pfeiffer, M Benjamin Nelson, Joshua M. Bock, Mary T. Imboden, Leonard A. Kaminsky, Alexander H.K. Montoye

Faculty Publications - Department of Kinesiology

Identifying the best analytical approach for capturing moderate-to-vigorous physical activity (MVPA) using accelerometry is complex but inconsistent approaches employed in research and surveillance limits comparability. We illustrate the use of a consensus method that pools estimates from multiple approaches for characterising MVPA using accelerometry. Participants (n = 30) wore an accelerometer on their right hip during two laboratory visits. Ten individual classification methods estimated minutes of MVPA, including cut-point, two-regression, and machine learning approaches, using open-source count and raw inputs and several epoch lengths. Results were averaged to derive the consensus estimate. Mean MVPA ranged from 33.9–50.4 min across individual …