In order to decrease disease risk, the Guidelines suggest that adults do at least 30 minutes of moderate-intensity physical activity most days of the week in addition to regular activity.
To lose weight or prevent additional gaining, the Guidelines say 60 minutes of moderate- to vigorous-intensity activity on most days of the week while not exceeding caloric intake requirements is key.
To maintain weight, 60 to 90 minutes of daily moderate-intensity physical activity while not exceeding caloric intake requirements is the recommendation.
The Guidelines do point out that "some people may need to consult with a healthcare provider before participating in this level of activity."
Source: Key Recommendations for the General Population <http://www.health.gov/dietaryguidelines/dga2005/recommendations.htm>
To learn more or to view the new Guidelines, visit http://www.healthierus.gov/dietaryguidelines/.
