Abstract
Previous research demonstrates that physical activity participation is associated with longer leukocyte telomere length, with shorter leukocyte telomere length being a hallmark characteristic of cellular aging. What remains under-investigated, however, is whether there is a mode-specific association of physical activity on leukocyte telomere length, which was this study's purpose. Data from the 1999-2002 National Health and Nutrition Examination Survey were used (N=6474 adults analyzed). Leukocyte telomere length was assessed using quantitative polymerase chain reaction. Physical activity was assessed via self-report, with participants classified as meeting physical activity guidelines (≥2000 metabolic equivalent of task-min-month) for 9 separate physical activities, including aerobics (unweighted percent meeting guidelines: 2.98%; n=193), basketball (2.0%; n=129), bicycling (3.71%; n=240), dance (2.30%; n=149), running (3.09%; n=200), stair climbing (1.33%, n=86), swimming (1.85%, n=120), walking (13.53%; n=876), and weight lifting (2.61%; n=169). In a single multivariable linear regression model including the independent variables of age, gender, race-ethnicity, weight status, total cholesterol, C-reactive protein, total meta...Continue Reading
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