1. Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
2. Faculty of Health Sciences, Department of Medical Technology, Kobe Tokiwa University, Kobe, Japan
3. Faculty of Rehabilitation, Research Center for Locomotion Biology, Kobe Gakuin University, Kobe, Japan
4. Organization for Research Initiative and Promotion, Tottori University, Yonago, Japan