1. Division of Biosciences, Graduate School of Science and Engineering, Teikyo University of Science: 2525 Yatsuzawa, Uenohara, Yamanashi 409-0193, Japan
2. Department of Rehabilitation, National Center of Neurology and Psychiatry, Japan
3. Department of Physical Therapy, Faculty of Medical Sciences, Teikyo University of Science, Japan
4. Department of Health Science, International University of Health and Welfare Graduate School, Japan
5. Department of Neurology, Teikyo University School of Medicine, Japan