Tennis players at all levels and ages are regularly participating in strength training, which is very important for maximizing performance and preventing injuries. But ultimately, speed and explosiveness of the movement determines who is stronger, faster and quicker on the tennis court. Plyometric exercises help to develop these qualities. During plyometric movements the muscles become loaded, coiled, compressed and then released while you are propelled forward, upward or sideways. This explosive strength is very important for your tennis game to start, stop and change the directions, or when you load to hit a stroke and then unload the muscles to generate force and power to create the movement.