In the deep area, with the noodle under your arms, lay on your back and rest your forearms on the noodle. Keep both your legs straight together, slightly below parallel.
First bend your knees toward your torso. Lean your torso forward as you push your hips down and descend your legs until you straighten them as deep as you can, in standing position. Then use your lower abdominal to raise straight legs up until you're back to the starting position.
Feel your upper and lower abdominal and your lower back muscles as well.
Legs Extension - Up and Down
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