Dynamic Stretching during Warm-Up?

On almost every football field in America, at some point before practices and games, the teams line-up and static stretch. Football teams have always done it, so what is the problem? The problem is that if anyone responsible for those football teams was asked why they are static stretching, they will probably not be able to offer a reason that is supported by current research. Is there a better activity to include in the warm-up? Dynamic stretch can generally be defined as controlled, steady movements through the range of motion that would be achieved by each joint during the activity. Static stretching involves reaching and holding at a point of slight discomfort. Ideally, warm-up for a sport should include activities that prepare the body for the sport, improve performance – or at the very least, not negatively impact performance – and reduce the risk of injury. Preparing the body