This is a simple yoga posture that you can even do on the floor of a hospital room. It strengthens the buttocks, which relieves lower back tension and also stretches the front of the thighs.
Lie on the floor with your knees bent and your feet flat on the floor. Place your arms out to your sides with your palms up.
Keeping your feet planted, lift your hips off the floor. Stretch them to the left a few inches, then put them back down.
Inhale, take your feet off the floor and draw your knees to your chest.
As you exhale, rotate your knees to your right side and then gently let them down to the floor.
Turn your head to look at your left hand and put your right hand on your right knee.
Relax and breathe for 10 to 30 seconds.
When ready, let gravity pull the top leg up and the bottom leg will follow.
Repeat on your left side.