1. Department of Physical Therapy, Hyosung Hospital, Cheongju-si, Chungcheongbuk-do, Republic of Korea
2. Department of Physical Therapy, College of Health and Medical Science, Cheongju University, Cheongju-si, Chungcheongbuk-do, Republic of Korea
3. Dr Ara Pilates Lab, Seo-gu, Daejeon, Republic of Korea