The perception of exertion during load carriage.
D000328:Adult; D006339:Heart Rate; D006801:Humans; D008124:Locomotion; D008297:Male; D010100:Oxygen / Q000097:blood; D010465:Perception / Q000502:physiology; D005082:Physical Exertion; D010809:Physical Fitness; D012119:Respiration
D010100:Oxygen