title: Work capacity of the Czechoslovakian population.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001794:Blood Pressure; D002648:Child; D003604:Czechoslovakia; D005260:Female; D006339:Heart Rate; D006801:Humans; D006985:Hyperventilation; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion; D010809:Physical Fitness; D012119:Respiration; D012737:Sex Factors