1. Department of Rehabilitation Medicine, Nagasaki University Hospital, Japan
2. Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science: 1-7-1 Sakamoto, Nagasaki, Nagasaki 852-8520, Japan
3. Department of Rehabilitation Medicine, Seirei Mikatahara General Hospital, Japan
4. Department of Physical Therapy, Faculty of Health Science, Kio University, Japan