Brief ReportAssociation of physical activity and body mass index with metabolic syndrome among US adolescents with disabilities
Section snippets
Surveys and sample
The NHANES consists of a series of nationally representative cross-sectional surveys from the US National Center for Health Statistics, and the details of the survey design of the NHANES are available through the Center for Disease Control (CDC) website.14 In this study, 12 years of continuous NHANES (1999–2010) data were used to obtain an adequate sample to represent our target population.
The criteria used to determine the eligibility of the sample were as follows: 1) adolescents who were
Results
The descriptive statistics of PA levels, BMI percentile, and cMetS scores for both A-With-D and A-Without-D are presented in Table 1. Overall, A-With-D were shown to have higher rates of PIA at 20.3%, compared to 14.7% of A-Without-D. Higher rates of obesity were also found for A-With-D at 20.9%, compared to 14.2% of A-Without-D. After controlling for demographic characteristics, A-With-D were more prone to MetS with significantly higher cMetS scores (adjusted Mean = −0.13) compared to
Discussion
In the present study, A-With-D are less likely to be engaging in PA than A-Without-D. This finding is mostly in agreement with the current understanding of a lower prevalence of PA and higher prevalence of obesity among A-With-D.7, 8, 9 A lower PA level among this population may be due to the fact that they may face more substantial barriers to PA participation compared to non-disabled population.8, 26, 27 Such barriers can be associated with compounding factors of internal and external
Conclusion
In summary, A-With-D who engage in no leisure time PA should be encouraged to become more physically active. Specifically, meeting PA guidelines (i.e., 60 min of MVPA per day) may yield substantial health benefits by reducing the risk of MetS. Furthermore, obesity has been identified as the strongest predictor of MetS among A-With-D. These findings imply that a priority should also be placed on development of systematic efforts to reduce obesity among A-With-D.
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Conflicts of interest and sources of funding: The authors have no conflict of interest to declare or financial disclosures.
The abstract of this study was presented at the 58th ACSM annual meeting, Denver, CO, USA in May, 2011.