1. Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, Japan
2. Department of Economics, Policy and International Business, Manchester Metropolitan University, Manchester, UK
3. Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan
4. Japan Institute of Sports Sciences, Tokyo, Japan
5. Faculty of Engineering, Information and Systems, University of Tsukuba, Tsukuba, Japan
6. Center for Artificial Intelligence Research, University of Tsukuba, Tsukuba, Japan