Lie on your back on a mat with your arms behind your head in a traditional sit-up position. Lift shoulder blades high off the ground so that abs are engaged. Bring bent knees in to touch elbows, then kick legs out straight at 45 degrees (or lower, as you get stronger), and then pull back in to elbows using lower abs. Make sure that you keep your back pressed against the mat so that it doesn’t arch. If it does, kick legs out at a higher angle. This targets upper and lower abs.
-Michele, Lea. Brunette Ambitioin. 1st ed. N.p.: Crown Archetpe, 2014. Print.-