Effect of Body Weight of Wheelchair Care Recipient on Physical Activity Intensity of Assistant Person. - Haruka Sugiyama; Yohsuke Yoshioka; Masaki Takahashi; Jiayu Cheng; Mitsuaki Shiraishi; Fumitake Hakozaki; Satoshi Kameno; Yoshihide Tokuda; Ken Nunota (AHFE (4), 2019)