1. Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
2. Department of Rehabilitation, Fukuoka Reha Orthopedic Clinic, Fukuoka, Japan
3. Department of Rehabilitation, Fukuoka Rehabilitation Hospital, Fukuoka, Japan
4. Department of Orthopedics, Fukuoka Rehabilitation Hospital, Fukuoka, Japan
5. Department of Orthopedics, Fukuoka Reha Orthopedic Clinic, Fukuoka, Japan