1. Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba, JAPAN
2. Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga, JAPAN
3. Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, JAPAN
4. Energy Technology Laboratories, OSAKA GAS Co., Ltd., Konohana-ku, Osaka, JAPAN