title: Motivational differentials among physically active and inactive mature males as measured by the motivational analysis test.
mesh_terms: D000328:Adult; D000368:Aged; D005239:Fear; D006801:Humans; D007989:Libido; D008297:Male; D008875:Middle Aged; D009042:Motivation; D009289:Narcissism; D010555:Personality Inventory; D005082:Physical Exertion; D011594:Psychometrics; D013475:Superego