Physiological problems in repetitive lifting with special reference to tolerance limits to the maximum lifting frequency.
D000222:Adaptation, Physiological; D000328:Adult; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion; D011674:Pulse; D012737:Sex Factors