Stretching is a very critical piece of preparing for and cooling down from a run, no matter the length or intensity.
Warm up stretching should be minimal and non-aggressive prior to running; followed by extensive and more aggressive stretching post-run.
Major muscles and muscle groups should be stretche
d at both times. These include: quadriceps, hamstrings, calves, hip rotators, shoulders and upper / lower back. These are all very important muscles involved in running. Keep them happy and they will keep you running happy!
Most of us runners like to get out there and just RUN. Right?!...
However, to be a really good runner, there should be a strengthening regime added to your running program to improve your performance and minimize your risk of injury.