1, Jochen Meyer 2, Kai von Holdt 2and Claudia Voelcker-Rehage 1,3,* 1 Institute of Human Movement Science and Health, Faculty of Behavioural and Social Sciences, Chemnitz University of Technology, Thüringer Weg 11, 09126 Chemnitz, Germany ...
Fitbit, a well-known fitness app, is an example of an app that offers synchronous tracking of physiological data, such as steps, heart rate, distance, and calorie count, to help individuals optimize their workout routines [8]. Virtual rewards and competition in fitness apps can also have a...