What takes place during the eccentric contraction phase of plyometric training?
1: The foot lands on the ground and the ground reaction force causes the muscles and tendons to go into concentric contraction.
2: The foot leaves the ground, powered by the ground reaction force and the muscles of the athlete.
3: The foot lands on the ground and the ground reaction force starts stretching the muscles and tendons.
4: The foot leaves the ground, powered by the ground reaction force only.