In a seated position, open your legs as wide as needed to feel a stretch in your inner thighs. If you're really tight, try sitting on a pillow, or try doing this stretch one leg at a time.
To increase the stretch, walk your hands forward while keeping your back straight, hinging forward from your hips. Hold for 20 to 30 seconds.
Then round your back, bringing your head toward the floor; hold for 20 to 30 seconds.