Stretching in football
While research is still debating on which technique has a greater impact on performance, it is common practice that dynamic stretching is proposed as part of the warm up routine pre-exercise. It increases heart rate and blood flow preparing muscles for activity and improves coordination as it activates key muscle groups for specific football movements thus reducing risk of injury. On the other hand, it requires proper technique to avoid strain as it could lead to muscle fatigue before a match.
Static stretching is usually most effective post exercise, as it helps relax and lengthen muscles reducing muscle soreness and stiffness, further aiding in recovery as it enhances blood flow. On the other hand, it is not proposed as a pre-match routine as it does not prepare muscles for high intensity actions, it can reduce explosive power (due to a reduction in muscle stiffness) and is susceptible to overstretching muscles thus increasing injury risk.
Ballistic stretching is meant to replicate match-realistic explosive movements such as sprinting, kicking or jumping. It enhances muscle stiffness properties leading to improved speed and power abilities as well as an increased flexibility for sharp changes in direction allowing for a more efficient movement. However, due to its sudden, forceful movements ballistic stretching involves a small amount of mastery as the movement lacks full control increasing risk of injury.