Because they stretch the muscles used during the workout.
Answer:
Causes contraction of the muscles
Explanation:
Ballistic stretching utilizes the energy of a moving body or an appendage trying to constrain it past its typical scope of movement. This is extending, or "heating up", by skipping into (or out of) an extended position, utilizing the extended muscles as a spring which hauls you out of the extended position.
This stretching is not usually recommended as the chances of injury in this stretching are at higher risk.
Explanation
Sleep can alter your sports performance because of how it affects the body during exercise. Therefore sleep can help your body in many things such as learning and exrisices.
The answer your looking for is B
