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Published on: March 7, 2019
Associations Between Physical Activity and Metabolic Syndrome: Comparison Between Self-Report and Accelerometry
Jared M Tucker1, Gregory J Welk1, Nicholas K Beyler1
1Jared M. Tucker, PhD, is with the Healthy Weight Center at Helen DeVos Children's Hospital, Grand Rapids, Michigan. Gregory J. Welk, PhD, and Youngwon Kim, MS, are with the Department of Kinesiology, Iowa State University, Ames, Iowa. Nicholas K. Beyler, PhD, is with the Mathematica Policy Research, Washington, D.C.
Physical activity (PA) is linked to metabolic syndrome. Not meeting PA guidelines increases odds of metabolic syndrome, especially when PA is measured objectively, not just by self-report.
Area of Science:
- Public Health
- Preventive Medicine
- Exercise Science
Background:
- Metabolic syndrome is a cluster of conditions increasing risk for heart disease, stroke, and diabetes.
- Physical activity is a key modifiable factor influencing metabolic health.
Purpose of the Study:
- To examine the association between self-reported and objectively measured physical activity (PA) and metabolic syndrome in US adults.
- To compare the strength of association for different PA measurement methods.
Main Methods:
- Cross-sectional study using data from the National Health and Nutrition Examination Survey (NHANES) 2003-2006.
- Included 5,580 US adults aged 20+ years.
- Assessed moderate-to-vigorous physical activity (MVPA) via self-report (MVPAsr) and accelerometry (MVPAa, MVPAb); metabolic syndrome risk factors included blood pressure, lipids, glucose, and waist circumference.
Main Results:
- Individuals not meeting PA guidelines had higher odds of metabolic syndrome.
- This association was stronger for objectively measured PA (MVPAa, MVPAb) compared to self-reported PA (MVPAsr).
- Significant associations persisted after adjusting for confounders, particularly for objective measures.
Conclusions:
- Failing to meet physical activity guidelines is associated with increased odds of metabolic syndrome.
- Objective measures of physical activity provide a stronger indication of metabolic syndrome risk than self-report measures.
