Cross-Sectional Associations Between Movement Behaviours, Obesity, and Metabolic Syndrome in an Out-Patient Population with Suspected Coronary Microvascular Dysfunction

Background: Coronary Microvascular Dysfunction (CMVD), affects the smaller vasculature and is difficult to diagnose without invasive tests. Little is known about the relationship between movement behaviours and CMVD, which may offer insight for primary prevention and early management. Objective: Examine and compare patterns of obesity, metabolic health, and movement behaviors amongst patients with CMVD and epicardial disease. Methods: The relationship between metabolic health, movement behaviors, and CMVD were estimated by logistic regression (unadjusted and adjusted for confounders). Results: Sleep quality and quantity were significantly worse in those with suspected coronary microvascular dysfunction. Physical activity was not significantly different between referral groups. Interestingly, obese-CMVD patients were 31.7% more likely to have suspected CMVD compared to their normal weight counterparts. Conclusions: Despite a relatively high prevalence of inactivity, sleep disturbance, MetS, and general and abdominal obesity, patterns of lifestyle factors did not materially differ between cases of suspected CMVD and epicardial disease.