1. Department of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine, Sendai, Japan;
2. Department of Movement, Human and Health Sciences, University of Rome, Rome, Italy;
3. Department of Biomechanics, Kinesiology and Informatics, University of Physical Education, Budapest, Hungary;
4. Division of Biomedical Engineering for Health & Welfare, Tohoku University Graduate School of Biomedical Engineering, Sendai, Japan;
5. Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands