one of my favorite ways to "cool down" is to do dynamic stretches. With dynamic stretches not only are you stretching to recover your tired muscles, you're cooling down, and getting a muscle endurance workout at the same time.
Most of the time people focus on the warm up but not on the cool down. Its good to do some static and dynamic stretches both before and after your workout to prevent injury and promote recovery.
Here are a few of my favorites to do after a good run.
- Walking Lunges
- Advance : Add a side twist to work the obliques and abs ( if the left leg is stepped out in front, twist torso to the left side)
- Advance: Squat Jumps
- Advance: Squat with side step
- With an arm outstretched at shoulder level, back straight and legs straight, swing your leg up so your toe touches your hand. Repeat on other leg and arm. For me, I sometimes swing opposite arm/leg or same side arm/leg.