Patterns of sedentary time and cardiometabolic risk among Canadian adults

Abstract

Objective: The aim of this study is to examine the associations of total sedentary time and patterns of sedentary time with cardiometabolic biomarkers in a large representative sample of Canadian adults. Methods: The study is based on 4935 adults aged 20-79. years, from the 2007/09 and 2009/11 Canadian Health Measures Survey. Total sedentary time, patterns of sedentary time (≥. 20. minute prolonged sedentary bouts, number of sedentary breaks), and moderate- to vigorous-intensity physical activity (MVPA) were accelerometer-derived. Waist circumference, systolic and diastolic blood pressure, high-density lipoprotein (HDL) cholesterol, and C-reactive protein were measured. Triglycerides, low-density lipoprotein (LDL) cholesterol, insulin, and glucose were also measured in a fasting sub-sample (n= 2551). Results: Total sedentary time and time in ≥. 20. minute prolonged sedentary bouts were associated with higher insulin and lower diastolic blood pressure levels (P