1. Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku-Cho, Toyohashi, Aichi 441-8580, Japan
2. Department of Physical Therapy, Toyohashi Sozo University School of Health Sciences, 20-1 Matsushita, Ushikawa-Cho, Toyohashi, Aichi 440-8511, Japan