22 Day Ab Challenge (FOR MUCH STRONGER ABS!!)

Here are the exercises that make up this ab workout challenge: 1) Heels to the Heavens (45 seconds is extinction level) 2) Alternating Plank Crunch Kick Up (45 seconds extinction level) 3) X Ups (12 reps extinction level) 4) Alternating Thread the Needle (10 reps per side extinction level) 5) Alternating Tricycle Kick Ups (45 seconds extinction level) 6) Alternating Kick Up Kick Out to Superman (12 reps extinction level)