With a controlled movement, bring your right knee up toward your hip. (mindbodygreen.com)
Bring your right knee up toward your hip and touch the raised knee with your left hand, crossing the arm in front of your upright torso. (mindbodygreen.com)
Stand and drive your right knee up high to the side as you bring your right elbow to meet it, performing a side crunch. (thebettyrocker.com)