Accelerometer-Derived Total Activity and Cardiometabolic Health Factors among US Adults, NHANES 2011-2014

Area of Science:

• Public Health
• Cardiovascular Health
• Physical Activity Measurement

Background:

• Cardiometabolic health is crucial for overall well-being.
• Accurate measurement of physical activity is essential for public health surveillance.
• Novel metrics like MIMS units offer new ways to assess physical activity.

Purpose of the Study:

• To investigate the association between Monitor Independent Movement Summary (MIMS) units and key cardiometabolic health indicators.
• To determine the relationship between MIMS units and Body Mass Index (BMI), glycated hemoglobin (A1c), non-high-density lipoprotein cholesterol (non-HDL-C), systolic blood pressure (SBP), and diastolic blood pressure (DBP).
• To analyze these associations in a nationally representative sample of U.S. adults.

Main Methods:

• Utilized data from the 2011-2014 National Health and Nutrition Examination Survey.
• Included 6,638 U.S. adults aged 20 years and older with valid accelerometer data.
• Employed generalized linear models to assess associations between MIMS units and cardiometabolic factors, adjusting for age and covariates.

Main Results:

• An increase of 1,000 average daily MIMS units was associated with a 0.91% decrease in BMI.
• Higher MIMS units correlated with a 0.26% reduction in A1c and a 0.27% decrease in non-HDL-C.
• Associations with SBP and DBP were not statistically significant; covariate adjustment had minimal impact.

Conclusions:

• MIMS units demonstrate similar associations with cardiometabolic health as traditional accelerometer measures.
• MIMS units show potential as a valuable indicator for health-related movement in public health surveillance and research.
• Further use of MIMS units can enhance understanding of physical activity's benefits on cardiovascular health.