Physiological responses to body weight--supported treadmill exercise in healthy adults.

Objective: To determine whether the relationships of heart rate, rating of perceived exertion (RPE), and ground reaction forces (GRFs) with oxygen consumption rate (Vo(2)) during treadmill exercise are altered by partial body weight support (BWS) via lower-body positive pressure.

Design: Repeated-measures design.

Setting: Exercise physiology laboratory.