Hitting the court is a good way to get exercise. Of course, the right tennis rackets ensure you play to the best of your abilities too. Manufacturers make rackets for beginners all the way up to pros and each features a specific design for that level of skill.
Large, pre-strung tennis rackets make it easier for beginners to hit the ball, while lightweight, small rackets reduce weight and improve a pro player's hitting power. For best results, search for a racket that fits your skill level.