The Effect of a Wearable Hip Assist Robot on Cardiopulmonary Metabolic Efficiency During Stair Ascent in Elderly Adults

All participants climbed stairs from the first basement level to the fourth floor of the Proton Therapy Center, Samsung Medical Center, Korea with and without a wearable hip assist robot. During climbing stairs, the metabolic energy expenditure of all participants was measured using a portable cardiopulmonary metabolic system (Cosmed K4b², Rome, Italy).