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Your cumulative exercise time, not your time per session, may be most important
Researchers used data collected on 2324 adults, aged 18–64 years, from the 2007–2011 cycles of the nationally representative Canadian Health Measures Survey, to compare total accumulated weekly moderate-to-vigorous physical activity and various frequencies of getting that exercise with risk of metabolic syndrome. Adults who met the physical activity guideline of getting at least 150 minutes of moderate-to-vigorous physical activity per week were sorted into two groups: frequently active (five or more days per week with 30 minutes or more of accumulated moderate-to-vigorous physical activity) and infrequently active (one to four days per week with 30 minutes or more of accumulated moderate-to-vigorous physical activity). Infrequently active people were significantly more likely to have each of the components of metabolic syndrome than frequently active people, even when total exercise per week was equal.