title: Maximal oxygen intake of mentally retarded boys.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D004734:Energy Metabolism; D006339:Heart Rate; D006801:Humans; D008607:Intellectual Disability / Q000378:metabolism*; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion; D013647:Task Performance and Analysis; D014797:Vital Capacity; D014937:Work