Antioxidants and physical performance in elderly persons

Discussion in 'Health and medical' started by Doe, Feb 21, 2004.

  1. Doe

    Doe Guest

    Antioxidants and physical performance in the elderly

    Some researchers suggest that age-related physical decline may be in part related to oxidative
    damage caused by free radicals. In a recent study, 986 Italians over 65 years of age were studied
    for a relationship between physical performance and oxidative stress. Physical performance was
    assessed on the basis of walking speed, ability to rise from a chair, standing balance and knee
    extension strength. Intakes of vitamin C, vitamin E, beta-carotene and retinol were measured, as
    were plasma alpha and gamma tocopherol levels. Plasma alpha- tocopherol was significantly correlated
    with knee extension strength and the total physical performance score. Plasma gamma-tocopherol was
    only associated with knee extension strength. Of the daily dietary intake measures, vitamin C and
    beta-carotene were significantly correlated with knee extension strength, and vitamin C was
    significantly associated with physical performance. In conclusion, plasma antioxidant concentrations
    correlated positively with physical performance and strength. Higher dietary intakes of most
    antioxidants, especially vitamin C, appear to be associated with higher skeletal muscular strength
    in elderly persons.

    Cesari M, Pahor M, Bartali B et al. Antioxidants and physical performance in elderly persons: the
    Invecchiare in Chianti (InCHIANTI) study. Am J Clin Nutr 2004;79:289-94.

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