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Two personality characteristics of 21 habitually exercising and 14 nonexercising college students were compared by using the Eysenck Personality Inventory. The former scored higher on Extraversion than the latter. Both groups of men (ns = 9 and 6), as well as 12 exercising women, scored lower on Neuroticism than 8 nonexercising women.
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Attila Szabó (1992) studied this question.
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