1 Key Laboratory of Exercise and Health Science of Ministry of Education, Shanghai University of Sport, Shanghai 200438, China. Electronic address: yuliu@sus.edu.cn.
2 School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China. Electronic address: barbara.ainsworth@asu.edu.
3 Department of Sport Science and Kinesiology, University of Salzburg, Salzburg, 5400, Austria. Electronic address: erich.muller@sbg.ac.at.