They have a lot of energy and a high activity level.

Increase your physical activity level to 30 minutes per day, most days of the week.

Children in general are at greater risk because of their high activity levels.

Most women are able to return to their normal activity level in 1 week.

Talk with your doctor about activity levels that are right for you.

Its activity level remains an important part of the economy.

I learned there was a whole lower level of activity going on inside me.

There were no differences in blood pressure or heart rate with physical activity level.

You may need to eat more than this based on your size and activity level.

They are able to maintain a high activity level for a long period, with little rest.