Validation of the Fitbit Charge 2 compared to the ActiGraph GT3X+ in older adults with knee osteoarthritis in free-living conditions.

OBJECTIVE:To evaluate physical activity (PA) and sedentary time in subjects with knee osteoarthritis (OA) measured by the Fitbit Charge 2 (Fitbit) and a wrist-worn ActiGraph GT3X+ (AGW) compared to the hip-worn ActiGraph (AGH). DESIGN:We recruited a cohort of subjects with knee OA from rheumatology...

Full description

Bibliographic Details
Main Authors: Jamie E Collins, Heidi Y Yang, Taylor P Trentadue, Yusi Gong, Elena Losina
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0211231