Association between MIMS/day and metabolic syndrome risk factors: NHANES 2011-2014
Oral Presentation C13.2
DOI:
https://doi.org/10.14288/hfjc.v14i3.726Keywords:
Physical Activity, Health, Metabolic Health, AccelerometerAbstract
Background: The US National Health and Nutrition Examination Survey (NHANES) Physical Activity Monitor (PAM) data for 2011–2014 were recently released. Therein, physical activity was reported as a novel PAM metric known as Monitor Independent Movement Summary (MIMS) units. Currently, limited information exists regarding the relationship between daily MIMS and cardiometabolic risk factors. Purpose: To determine the association between MIMS/day and Metabolic Syndrome (MetS) risk factors using a nationally representative dataset for US adults aged 18-65 years. Methods: NHANES PAM data were collected using a tri-axial accelerometer (ActiGraph GT3X+; 80Hz, 24/7 wear-time protocol on non-dominant wrist). Valid wear-time was considered ≥10h/day and ≥4 valid days. MetS risk factors included: waist circumference, triglycerides, HDL-C, blood pressure, fasting glucose. Simple linear regression (accounting for survey sample weights) was performed to determine the relationship between increasing number of risk factors and MIMS/day. Results: The analytical sample comprised n=4578 individuals with valid wear-time (mean±SD; 22.1±1.9 h/day, 6.7±0.7 days). MIMS/day was negatively associated (p<0.001) with increasing number of risk factors. Physical activity level decreased -557 MIMS/day (β-coefficient) for every one-unit increase in the number of risk factors. Mean [95%CI] for risk factor levels were: no risk factors (13792 [13643–14358]); 3 risk factors (11863 [11709–12312]), all 5 risk factors 10425 [10159,11771] MIMS/day. Conclusions: Higher MIMS/day values were associated with absence of risk factors, with a progressive decline as number of MetS risk factors increased. These MIMS/day values may be considered preliminary benchmark values associated with cardiometabolic risk for the US adult population.
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Copyright (c) 2021 Elroy J. Aguiar, James Pleuss, Dusty Turner, Peixuan Zheng, Scott Ducharme
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