- Lie on your stomach and place your forearms on the ground in a way that your Upper arms are placed directly under your shoulders.
2. Flex your abdominal muscles and lift your knees off the ground and then:
A. Tuck one leg to your stomach.
B. Flex your spine to squeeze your abs as much as possible.
C. Kick the air with your tucked in Leg.
3. Now do this with your other leg.