Aerobic exercise, or cardio, elevates your heart rate with movements that activate your body's large-muscle groups. When done in the water, this type of workout offers many proven benefits, including ...

AQUA AEROBICS: I'd heard the term but never imagined there were 900 different ways to exercise in a swimsuit. "There's such a variety," says John Spannuth, president and CEO of the U.S. Water Fitness ...