1. Department of Physical Therapy, Faculty of Health Science, Osaka Yukioka College of Health Science: 1-1-41 Sojiji, Ibaraki City, Osaka 567-0801, Japan
2. Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, Japan
3. Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Japan