Parallel Straight Legs Sit with both legs extended straight in front of you, toes pointed. Pulling your abs in and up, round your torso so you have a small Cshaped curve in your back. Spread your fingers apart and press the majority of your body weight forward into the fingertips, relaxing the shoulders. Keeping your belly button pulled toward your spine, open and close your legs 12 times. If possible, lift your legs slightly off the floor as you open and close.