[1] Okayama Healthcare Profess Univ, Fac Hlth Sci, Dept Phys Therapy, Okayama 7000913, Japan
[2] Kagawa Univ, Fac Med, Dept Hyg, Takamatsu 7610793, Japan
[3] Osafune Clin, Dept Rehabil, Okayama 7014264, Japan
[4] Obata Med Clin, Dept Rehabil, Okayama 7080806, Japan
[5] KKR Takamatsu Hosp, Rehabil Ctr, Takamatsu 7600018, Japan
[6] Prefectural Univ Hiroshima, Fac Hlth & Welf, Dept Phys Therapy, Hiroshima 7230053, Japan