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Psychol Aging. 1997 Mar;12(1):137-44.

Strength in the lower limbs, visual contrast sensitivity, and simple reaction time predict cognition in older women.

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  • 1Department of Psychology, University of Queensland, Brisbane, Australia.


The authors investigated the association between sensorimotor variables indicative of biological aging and cognition. A community sample of 202 women ages 60-86 was assessed on 5 measures of lower limb strength, visual contrast sensitivity (VisCS), and reaction time (RT). Hierarchical multiple regression revealed that the sensorimotor variables explained age-related variance in measures of reasoning and total variance in measures of reasoning after education, health, mood, and physical activity were controlled for. It is concluded that in addition to better known predictors of cognitive aging, such as RT and VisCS, lower limb strength is an important predictor of performance on cognitive tests.

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