Physically active lifestyle does not decrease the risk of fattening

K.R. Westerterp*, G. Plasqui

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review


    BACKGROUND: Increasing age is associated with declining physical activity and a gain in fat mass. The objective was to observe the consequence of the age-associated reduction in physical activity for the maintenance of energy balance as reflected in the fat store of the body. METHODOLOGY/PRINCIPAL FINDINGS: Young adults were observed over an average time interval of more than 10 years. Physical activity was measured over two-week periods with doubly labeled water and doubly labeled water validated triaxial accelerometers, and body fat gain was measured with isotope dilution. There was a significant association between the change in physical activity and the change in body fat, where a high initial activity level was predictive for a higher fat gain. CONCLUSION/SIGNIFICANCE: The change from a physically active to a more sedentary routine does not induce an equivalent reduction of energy intake and requires cognitive restriction to maintain energy balance.
    Original languageEnglish
    Article numbere4745
    JournalPLOS ONE
    Issue number3
    Publication statusPublished - 1 Jan 2009


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