Bouncing during stretching, known as ballistic stretching, may lead to more harm than benefit.
Ballistic stretching involves forceful bouncing during a stretch, but it can lead to injury as it may cause muscle soreness due to muscular contraction from the stretch reflex. This type of stretching is not recommended by many professionals as it is seen as unsafe and less effective at improving range of motion (ROM) compared to other methods.
When Rosa bounces up and down while stretching, she is performing a form of ballistic stretching. Although it may seem to provide a deeper stretch, it can also increase the risk of injury rather than enhancing flexibility or muscle strength.
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