1. Ibaraki Prefectural University of Health Sciences Hospital, Ibaraki, Japan
2. Department of Physical Therapy, Mejiro University, Saitama, Japan
3. Department of Rehabilitation, Kumamoto Health Science University Kumamoto Japan
4. Department of Rehabilitation, Nihon Institute of Medical Science Morohong? Japan
5. Department of Physical Therapy, Ibaraki Prefectural University of Health Sciences, Ibaraki, Japan