title: Psychophysical studies of physiological fatigue criteria.
mesh_terms: D000124:Achievement; D000328:Adult; D000368:Aged; D001887:Boredom; D004735:Energy Transfer; D005221:Fatigue / Q000503:physiopathology*; D006339:Heart Rate; D006801:Humans; D008297:Male; D005222:Mental Fatigue / Q000503:physiopathology; D008722:Methods; D008875:Middle Aged; D010101:Oxygen Consumption; D005082:Physical Exertion; D011603:Psychophysiology