Stored energy from an efficiently functioning stretch-shortening cycle is released during which muscle action?

The stretch-shortening cycle (SSC) refers to the natural muscle action that occurs during activities involving both eccentric and concentric muscle contractions. This cycle emphasizes the importance of pre-stretching a muscle before it contracts to produce greater force.

During the eccentric phase, the muscle lengthens while absorbing energy, which is then stored as potential energy. This energy is released in the following concentric phase when the muscle contracts and shortens. The concentric action is crucial because it utilizes the stored energy from the preceding eccentric movement efficiently, leading to enhanced performance in activities such as jumping or sprinting.

Understanding the SSC is essential for trainers as it informs exercise selection and programming aimed at developing power and explosive strength. Recognizing the role of concentric action in releasing energy helps trainers design effective workouts that maximize the benefits of plyometric and explosive training techniques.