Respuesta :

Answer:

Stretching increases joint synovial fluid (lubricant for bones and articular cartilage) that allows greater range of motion and reduces joint degeneration. Stretching increases a joint's ability to move through a greater range of motion with less energy required to do so.

Explanation:

Stretching pulls on the muscle fibers and it also results in an increased blood flow to the muscles being worked. Without a proper warm-up, it is possible that you may either damage some of the muscle fibers or pull a tendon.