1. Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
2. Equally contributed to this study
3. Department of Statistics and Computer Science, College of Nursing Art and Science, University of Hyogo, Akashi, Japan
4. Division of Child Neurology, Tokushima Prefectural Hinomine Medical Center for the Handicapped, Komatsushima, Japan
5. Department of Human Nutrition, School of Life Studies, Sugiyama Jogakuen University, Nagoya, Japan
6. Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, The University of Shizuoka, Shizuoka, Japan
7. Department of Rehabilitation Medicine, Tokushima University Hospital, Tokushima, Japan
8. Department of Orthopedics, Tokushima University, Tokushima, Japan