Chances Are High Your Butt Is Asleep, and Here's How to Wake It Up

You need to loosen up the rectus femoris, the part of the quad that works both the hip and knee and acts as a powerful hip flexor.

• Begin in a lunge with your right foot forward. Slowly lower your left knee to the floor. If your knee is sensitive, place a towel under it.
• Take a few moments to find your balance, and once you're stable, reach your left arm back to grab your left foot. Pull your foot toward your pelvis to increase the stretch. Squeezing your left glute will increase the stretch, too.
• Hold for 30 seconds. Slowly release your hold on your left foot. Come back to the high lunge position, then switch sides with your left foot forward to stretch your right hip.