HUNTINGDON Tennis Club have started holding classes for a fitness sport that combines tennis with circuit running. Cardio-Tennis is a system designed to burn calories with short, sharp bursts of a high intensity workout. Coach Chris Little said: "The goal is to get a player's heart rate to between 65 and 85 per cent of their maximum and keep it there for the entire session. "Each player wears a heart monitor watch but the key thing is to make it fun in a great social atmosphere." Gillian James, who works for the Huntingdon Tennis Centre, said: "I have done all kinds of fitness training at the gym, running, circuit training, cycling, swimming, but the best thing about this is you are so busy chasing and whacking the balls, that you don't have a chance to feel bored or wonder how long to go, as it is varied and fun." Cardio Tennis is a workout to music which last for an hour in which a tennis coach takes participants through a series of drills such as returning forehands and moving back and fourth across the court for shots, though the ball is not hit to anyone. This is combined with drills such as zig-zag running between cones. New courses start at the Huntingdon Tennis Centre on St Peters Road in January on Tuesday evenings and Thursday mornings during term time, and a six week course costs \u00A336. For more information, contact Centre Manager Clare Bragg on 01480 411412.