Participants at high risk for cardiovascular disease were given an exercise tolerance test before starting the activity interventions. Sedentary individuals were instructed to increase their activity in 30-min increments over 5 weeks. Those who were active at baseline were not required to add further exercise but rather had the same 150-min/weekly goal. However, the physical activity goal was stated as a minimum, and participants who wished to be more active were strongly encouraged to do so, as long as there were no medical contraindications.