Double Leg Lift
Start by lying on your right side, with your right arm bent under your head for support, your left arm bent, your palm pressed on the ground in front of your chest, and both legs extended out straight and stacked (your body should make a straight line from head to toe). Squeeze your heels together and point your toes. Brace your abs in tight to your spine and exhale as you lift both legs off the ground (keeping your heels touching) to hip height (as shown) and then lightly lower back to the floor. That's one rep. Do 10 reps in total.