“…Consequentially, researchers have used a variety of methodologies to establish device validity. For heart rate, protocols involving resistance training and cycling (Boudreaux et al, 2018), treadmill walking (Montes, Young, Tandy, & Navalta, 2018), separately evaluated indoor and outdoor free motion walking (Lamont, Daniel, Payne, & Brauer, 2018), and measurements taken while seated, supine, during treadmill walking and running, and when cycling (Wallen, Gomersall, Keating, Wisloff, & Coombes, 2016) have been utilized. For step count, protocols have looked at values compared to a predetermined number of steps (El-Amrawy & Nounou, 2015), steps taken in a predetermined distance (Floegel, Florez-Pregonero, Hekler, & Buman, 2017), values from walking up and down stairs (Huang, Xu, Yu, & Shull, 2016), and treadmill walking (Montes, Young, Tandy, & Navalta, 2017).…”