A new group fitness activity combines the traditional sport of tennis with a high-energy cardiovascular workout. During a Cardio Tennis session, certified instructors lead participants through short cycles of high intensity activity and periods of rest, similar to interval training. Not a tennis player? Not a problem. Beginners as well as seasoned pros are welcome at sites across the country. For more information and to find a Cardio Tennis facility in your area, visit the site cardiotennis.com.