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    Question ID:   1921         Current Version: 1
Question: How much physical activity is needed?
Category: Health & Beauty > Fitness and Nutrition
Keywords: amount, exercise, physical, activity, need
Type: how
Rating:(0 ratings)    Views: 732    Discussions: 0   In Watch Lists: 1  

 
    Answer:

Daily

At a minimum, do moderate intensity activity for 30 minutes most days, or preferably every day. This is in addition to your usual daily activities.  Increasing the intensity or the amount of time of activity can have additional health benefits and may be needed to control body weight.

About 60 minutes a day of moderate physical activity may be needed to prevent weight gain.  For those who have lost weight, at least 60 to 90 minutes a day may be needed to maintain the weight loss. At the same time, calorie needs should not be exceeded. Children and teenagers should be physically active for at least 60 minutes every day, or most days.

While 30 minutes a day of moderate intensity physical activities provide health benefits, being active for longer or doing more vigorous activities can provide even greater health benefits. They also use up more calories per hour. No matter what activity you choose, it can be done all at once, or divided into two or three parts during the day. Even 10-minutes bouts of activity count toward your total.

Weekly

Health benefits are gained by doing the following each week:

  • 2 hours and 30 minutes of moderate-intensity aerobic physical activity

or

  • 1 hour and 15 minutes of vigorous-intensity aerobic physical activity

or

  • A combination of moderate and vigorous-intensity aerobic physical activity

and

  • Muscle-strengthening activities on 2 or more days

This physical activity should be in addition to your routine activities of daily living, such as cleaning or spending a few minutes walking from the parking lot to your office.

Moderate Activity

During moderate-intensity activities you should notice an increase in your heart rate, but you should still be able to talk comfortably. An example of a moderate-intensity activity is walking on a level surface at a brisk pace (about 3 to 4 miles per hour). Other examples include ballroom dancing, leisurely bicycling, moderate housework, and waiting tables.

Vigorous Activity

If your heart rate increases a lot and you are breathing so hard that it is difficult to carry on a conversation, you are probably doing vigorous-intensity activity. Examples of vigorous-intensity activities include jogging, bicycling fast or uphill, singles tennis, and pushing a hand mower.

Safety

Most adults do not need to see their health care provider before starting to exercise at a moderate level. However, men over the age of 40 and women over the age of 50 planning to start vigorous physical activity should consult a health care provider. Individuals with one of the conditions below should also consult a health care provider for help in designing a safe program of physical activity.

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