Medicine and science in sports and exercise vol:45 issue:3 pages:481-9
PURPOSE: To examine the associations of multiple, objectively measured parameters of physical activity and sedentary behavior with metabolic syndrome (MetS) and its individual components. METHODS: Physical activity was measured in 370 Flemish adults (41.7 ± 9.8 years) for seven days using a SenseWear Armband. MetS was defined according to the NCEP-ATP III guidelines. Logistic regressions examined the associations between subcomponents of physical activity and sedentary behavior and the odds of having MetS or individual risk factors. RESULTS: MetS was observed in 10.2% of men and 5.2% of women. Adults who spent ≥60 min·d in moderate-to-vigorous physical activity (MVPA) were 68-81% less likely to have abdominal obesity, hypertriglyceridemia and low HDL-C, compared to those with <30 min·d MVPA, independent of sex, age, education, smoking, alcohol consumption and total sedentary time. Total sedentary time and average duration of a sedentary bout were positively associated with MetS and most of its individual risk factors (OR: 1.07-1.47). Breaks in sedentary time were inversely associated with abdominal obesity (OR: 0.71, 95% CI: 0.55-0.91) and hypertriglyceridemia (OR: 0.79, 95% CI: 0.63-0.99). These associations were no longer significant after adjustment for MVPA (and total sedentary time). Light physical activity was not associated with MetS or any of the individual risk factors. Time spent in moderate, vigorous, total MVPA and bouts of MVPA were associated with a reduced likelihood of abdominal obesity (OR: <0.01-0.48), hypertriglyceridemia (OR: 0.14-0.63) and low HDL-C (OR: 0.02-0.43), independent of potential confounders and total sedentary time. CONCLUSIONS: Engagement in MVPA may be essential to prevent MetS and individual risk factors.