1. Department of Physical Therapy, School of Rehabilitation Sciences, Health Sciences University of Hokkaido: 1757 Kanazawa, Tobetsu, Hokkaido 061-0293, Japan
2. Graduate School of Sport and Health Science, Ritsumeikan University, Japan
3. Saiseikai Otaru Hospital, Japan
4. Shinsapporo Houwakai Hospital, Japan
5. Faculty of Sport and Health Science, Ritsumeikan University, Japan