About the Authors

Yasuaki Kusumoto

kusumotoys@stf.teu.ac.jp

Affiliation Department of Physical Therapy, Faculty of Health Sciences, Tokyo University of Technology, Ota-ku, Tokyo, Japan

Osamu Nitta

Affiliation Department of Physical Therapy, Faculty of Health Sciences, Tokyo Metropolitan University, Arakawa-ku, Tokyo, Japan

Atsushi Matsuo

Affiliation Department of Orthopedic, Minamitama Orthopedic Hospital, Machida, Tokyo, Japan

Kenji Takaki

Affiliation Department of Rehabilitation, Minamitama Orthopedic Hospital, Machida, Tokyo, Japan

Tadamitsu Matsuda

Affiliation Department of Physical Therapy, Faculty of Health Sciences, Uekusa-Gakuen University, Chiba, Chiba, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YK ON AM KT TM. Performed the experiments: YK AM KT. Analyzed the data: YK TM. Contributed reagents/materials/analysis tools: YK. Wrote the paper: YK.