Changes in electromyographic activity associated with occupational stress and poor performance in the workplace.
D004576:Electromyography; D005221:Fatigue / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008328:Man-Machine Systems; D009784:Occupational Diseases / Q000453:epidemiology*; D011177:Postal Service; D013312:Stress, Physiological / Q000453:epidemiology*; D014481:United States