Profiles of Accelerometry-Derived Physical Activity Are Related to Perceived Physical Fatigability in Older Adults. - Jessica L. Graves; Yujia (Susanna) Qiao; Kyle D. Moored; Robert M. Boudreau; Elizabeth M. Venditti; Robert T. Krafty; Eric J. Shiroma; Jaroslaw Harezlak; Nancy W. Glynn (Sensors, 2021)