The American College of Sports Medicine members are concerned that people may have misunderstood the official advice to do 30 minutes of gentle exercise each day, and want to make sure people understand that strolling through the parking lot to your car does not count as “gentle exercise.”
Therefore, they have now clarified their recommendations with new advice for adults aged 18 to 65 as follows:
| 30 minutes of moderate exercise, 5 days per week |
| OR, 20 minutes of vigorous exercise, 3 days per week |
| OR, a combination of moderate and vigorous exercise, plus 2 weekly sessions of weight training |
Moderate exercise would include activities such as brisk walking, with jogging considered a more vigorous activity.
Pregnant women and those aged 65 or older are advised to modify the type of activities they do and to exercise with caution.
BBC News August 17, 2007