Aerobic physical activity should be spread throughout the week. Research studies consistently show that activity performed on at least 3 days a week produces health benefits. Spreading physical activity across at least 3 days a week may help to reduce the risk of injury and avoid excessive fatigue.
Episodes of aerobic activity count toward meeting the Guidelines if they last at least 10 minutes and are performed at moderate or vigorous intensity. These episodes can be divided throughout the day or week. For example, a person who takes a brisk 15-minute walk twice a day on every day of the week would easily meet the minimum Guideline for aerobic activity.