Calorie burn
Expect to burn between 400 and 500 calories per hour in a water aerobics class. Yes, you read that correctly. It has been reported that water aerobics can burn just as many calories as a regular gym class but without all the sweating. The actual amount you burn will depend on your size, the intensity of your movements, as well as, the water temperature. In general, faster movements incorporating the upper and lower body in deep water elicit the greatest calorie burn.