2.1. Study design and participants
PATHOLOGY, NEUROMUSCULAR DISEASE
In this single-blind, randomized crossover trial conducted over the course of 1 day, we recruited 20 healthy volunteers (22.7 ± 1.8 years old) from staff at our hospital between April 2016 and March 2017. We excluded participants with a history of orthopedic pathology or neuromuscular disease.Written informed consent was obtained from all individual participants included in this study. This clinical trial was registered on the University Hospital Medical Information Network (UMIN)-Center at 