Final answer:
Ballistic stretching has a key disadvantage of increased danger of overstretching, which can lead to injury and increase muscle soreness. It can also trigger the stretch reflex and requires more energy compared to static stretching.
Step-by-step explanation:
Compared to static stretching, ballistic stretching has a few possible disadvantages. One key disadvantage is the increased danger of overstretching the target tissues.
Since ballistic stretching involves bouncing into a stretch, it can cause the muscles to extend beyond their normal range, which may lead to injury, such as muscle tears or tendon strains.
This method of stretching can be more strenuous on the muscles, causing more muscle soreness after exercise. Furthermore, this technique may trigger the stretch reflex, which is the body's protective response to avoid overstretching, thereby potentially causing the muscles to tighten instead of lengthen.
Therefore, the disadvantage of ballistic stretching when compared to static stretching is B. Increased amount of energy is needed to perform the exercise.