1. Department of Rehabilitation Sciences, School of Health Sciences, Hirosaki University of Health and Welfare, 3-1 Sanpinai, Hirosaki, Aomori 036-8102, Japan
2. Graduate School of Science and Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
3. Applied Biosciences, Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
4. Faculty of Education, Hirosaki University, 1 Bunkyo-cho, Hirosaki, Aomori 036-8560, Japan