1. Department of Rehabilitation, Faculty of Medical Science and Welfare, Tohoku Bunka Gakuen University: 6-45-1 Kunimi, Aoba-ku, Sendai, Miyagi 981-8551, Japan
2. Graduate School of Health and Environment Sciences, Tohoku Bunka Gakuen University, Japan
3. Division of Rehabilitation, Sendai Rehabilitation Hospital, Japan
4. Department of Physical Therapy, Yamagata College of Medical Arts & Sciences, Japan