title: Second factor analysis study of physical fitness tests.
mesh_terms: D002320:Cardiovascular Physiological Phenomena; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007866:Leg / Q000502:physiology; D008297:Male; D005082:Physical Exertion; D010809:Physical Fitness; D012143:Respiratory Physiological Phenomena; D012737:Sex Factors