Spontaneous alternation of the working arm in static overhead work.
D000222:Adaptation, Physiological; D000328:Adult; D001132:Arm / Q000502:physiology*; D004576:Electromyography; D005221:Fatigue; D006339:Heart Rate; D006801:Humans; D008297:Male; D009119:Muscle Contraction; D010146:Pain; D005082:Physical Exertion; D012119:Respiration; D013997:Time Factors