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Purpose. We have a limited understanding of the objectively determined physical activity levels by weight control status (i.e., trying to lose weight, trying to maintain weight, and neither trying to lose or maintain weight) among U.S. adults with diabetes. Therefore, this study assessed the association between physical activity and weight control status among U.S. adults with diabetes. Design. Cross-sectional survey. Setting. The 2003-2006 National Health and Nutrition Examination Survey (NHANES) was used, which is representative of the U.S. population. Subjects. Subjects were 733 adults (≥ 20 years) with diabetes. Measures. Participants wore an accelerometer to assess physical activity, and questionnaires were used to assess weight control status and covariates. Analysis. Multivariate negative binomial regressions were used. Results. After adjustments, and compared to those not trying to lose or maintain their weight, women trying to lose weight engaged in 74% more physical activity (rate ratio = 1.74; 95% confidence interval [Cl]: 1.14 to 2.65). Although findings were not significant for men, men were more likely than women to meet physical activity recommendations. Conclusion. Diabetic women trying to lose weight engaged in more physical activity than did their female counterparts not trying to lose or maintain their weight. Although men were more active than women, no differences in activity estimates occurred across weight control status for men. [ABSTRACT FROM AUTHOR]

Epidemiological studies demonstrate a beneficial effect of physical activity (PA) on various biological health outcomes associated with diabetes; however, these studies have been limited by the use of self-report measures of PA. To provide the most accurate association between PA and health among adults with diabetes, the purpose of this study was to examine the association between accelerometer-assessed PA and numerous biological markers associated with diabetes. Data from the 2003-2006 National Health and Nutrition Examination Survey were used. Adult participants with diabetes were included in the present study and wore an ActiGraph 7164 accelerometer. Light and moderate-to-vigorous PA (MVPA) intensity was determined from accelerometer-derived estimates. Various biological measures, such as triglycerides and C-reactive protein, were measured from a blood sample. Results showed that both light-intensity and MVPA were inversely associated with several biological health outcomes. Additionally, active adults were less likely to have multiple cardiovascular disease risk factors. Findings also differed by age and gender, suggesting that PA interventions may need to consider the influence that age and gender may have on the efficacy of physical activity interventions. [ABSTRACT FROM AUTHOR]