Back to TTM ResultsOn average, women exercised for about an hour three times a week, and about half of that time was spent in cardiovascular exercise (53%). Men exercised for over an hour about 2.5 times a week, and the majority of that time (60%) was spent in cardiovascular exercise. The Centre for Disease Control and Prevention in the USA recommends 150 minutes (2 hours and 30 minutes) a week of moderate to intense aerobic activity along with muscle-strengthening exercises on 2 or more days. Thus, couples in the TTM study were probably exercising an hour to 1.5 hours less per week than recommended. Health Canada and the Centre for Disease Control provide tips for building your physical activity. One suggestion is to break up your exercise into 10 minute intervals, for example, go for a brisk walk 3 times a day 5 days per week instead of trying to fit exercise into large blocks of time.