title: Longitudinal and cross-sectional assessments of age changes in physical strength as related to sex, social class, and mental ability.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000375:Aging; D001827:Body Height; D001835:Body Weight; D005260:Female; D005500:Follow-Up Studies; D005602:France; D006801:Humans; D007360:Intelligence; D008019:Life Style; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000502:physiology; D009790:Occupations; D010809:Physical Fitness; D012737:Sex Factors; D012923:Social Class