The yin yoga posture of sleeping swan pose or pigeon pose opens the Liver and Gall Bladder meridians, the hips, and quads. This posture is also a back bend so it also helps the health of the lower spine.
Add padding under the knee or hip if there is any sensitivity or if they are hovering above the floor. As you move into the posture rest your weight in your hips. If you can't get into this posture you can take eye of the needle instead or try pulling your front foot in closer to your groin.
To come out of the posture tuck your back toes under, inhale and pull your front leg back. Rest in child's pose after the posture as a gentle counter pose.