Plyometric exercise involves explosive movements that enhance muscle power and speed. These exercises typically include jumping, bounding, and hopping, which help improve athletic performance by training the muscles to exert maximum force in short intervals. Common examples include box jumps, burpees, and jump squats. The primary goal of plyometric training is to increase the efficiency of the muscle stretch-shortening cycle, which is the process where muscles stretch and then contract quickly. This type of training is often used by athletes in sports like basketball and track and field to develop strength and agility, making it a popular choice for fitness enthusiasts as well.