Energy expenditure and aerobic fitness of male low seam coal miners.
D000293:Adolescent; D000328:Adult; D000368:Aged; D003032:Coal Mining; D004734:Energy Metabolism; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D005082:Physical Exertion; D013647:Task Performance and Analysis