Your quadriceps (front thigh) muscles work hard when you're running, so they'll need a good stretch when you're done. Here's what to do:
1. Stand straight, lift your right foot up behind you, and grab your right foot with your right hand.
2. Pull your heel gently toward your butt, feeling a stretch in your quadricep (front thigh).
3. Keep your knees as close together as possible.
4. Hold the stretch for 15 to 30 seconds.
5. Repeat with the left leg.
Get more running stretches.