Effects of Using a Lumbar-Type Hybrid Assistive Limb by Older Adults With Frailty on Exercise Self-Efficacy: Retrospective Analysis Based on the Kanagawa Prospective ME-BYO Cohort Study

Makoto Nagasawa   ^{1, 2, 3} , PhD ;   Sho Nakamura   ^{1, 2} , MD, PhD ;   Yoshinobu Saito   ^{4, 5, 6} , PhD ;   Yuko Oguma   ^{7, 8} , MD, PhD ;   Takashi Kasukawa   ⁹ ;   Kaname Watanabe   ^{1, 3} , MD, PhD ;   Hiroto Narimatsu   ^{1, 2, 3, 6} , PhD, MD

¹ Cancer Prevention and Control Division, Kanagawa Cancer Center Research Institute, Yokohama, Kanagawa, Japan

² Graduate School of Health Innovation, Kanagawa University of Human Services, Kawasaki-ku, Kawasaki, Kanagawa, Japan

³ Department of Genetic Medicine, Kanagawa Cancer Center, Yokohama, Kanagawa, Japan

⁴ Faculty of Sport Management, Nippon Sport Science University, Kanagawa, Japan

⁵ Graduate School of Physical Education, Health and Sport Studies, Nippon Sport Science University, Tokyo, Japan

⁶ Center for Innovation Policy, Kanagawa University of Human Services, Kanagawa, Japan

⁷ Sports Medicine Research Center, Keio University, Kanagawa, Japan

⁸ Graduate School of Health Management, Keio University, Kanagawa, Japan

⁹ Shonan Robocare Center, Kanagawa, Japan