Plank. Exhale and “cartwheel” your hands to the floor on either side of your left foot. Turn your right foot, lifting your right heel, then step your left foot back to meet the right. Forming a straight line from head to heels, keep your abs pulled up and in, maintain a long neck and open your chest. Hold this position for 5 breaths. On the last exhale, slowly bend your elbows and lower yourself all the way to the floor.