1 Department of Occupational Therapy, Chiba Medical Welfare College, 1019 Kamiyue, Kimitsu City, Chiba, 299-1138, Japan.
2 Second Stage of Doctoral Program, Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, 1-1 Gakuen-cho, Mihara City, Hiroshima, 723-0053, Japan.
3 Department of Occupational Therapy, Rehabilitation College Shimane, 2086-1 Furuichiba, Misumi-cho, Hamada City, Shimane, 699-3226, Japan.
4 Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, 1-1 Gakuen-cho, Mihara City, Hiroshima, 723-0053, Japan.
5 Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, 1-1 Gakuen-cho, Mihara City, Hiroshima, 723-0053, Japan. hisano@pu-hiroshima.ac.jp.