Lie flat on your back, hands down at your sides, and feet planted on the floor. Inhale then exhale sharply and tilt your hips up towards your ribcage, keeping your lower back on the floor and cinching your belly button in towards your spine. Hold that position as you extend and lift one leg slightly off the ground. Next, lift your heel up towards the ceiling, keeping your foot and hip in one straight, vertical line. Next, gently lower the heel back to that original position (hovering off the ground). Do these motional all while holding your traverse abdominals in (belly button towards your spine, back flat on the floor). Execute 12 repetitions with one leg, then 12 with the other.