Why the study?
Does habitual physical activity improve cardiovascular risk factors and target organ damage in adolescents and young adults?
Does habitual physical activity improve cardiovascular risk factors and target organ damage in adolescents and young adults?
Habitual physical activity is associated with better cardiovascular risk profiles and less arterial stiffness in youth, likely mediated through improved glycemic control and lipid levels.
BACKGROUND: We aimed to (1) compare a subjective and objective measure of habitual physical activity (PA), (2) determine the association of PA and cardiovascular risk factors, and (3) test the hypothesis that PA is an independent determinant of target organ damage in youth. METHODS: tests. General linear models tested for independent associations. RESULTS: The correlation between International Physical Activity Questionnaire and accelerometry was weak (r = .23, P = .0003). Less active subjects had worse cardiovascular risk profiles and target organ damage, including stiffer arteries (P < .01). These outcome differences did not reach statistical significance when adjusted for covariates, such as lipid levels and glycemic control. CONCLUSION: Survey assessment of PA is complicated by inaccurate reporting. There is a strong association of habitual PA with cardiovascular risk factor clustering. PA may exert its beneficial effect on arterial stiffness in obese youth through improved glycemic control.
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Wittekind et al. (2017) studied this question.
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