SETUP: Secure your feet to a decline bench and lay back. Hands should be placed either in an “X” across your chest or lightly touching the side of your head. Don’t wrap your fingers behind your head, this encourages people to yank their neck, which is bad news.
REP: Crunch by squeezing your abs hard and add a twist to the move by aiming an elbow towards the mid-line of your body. If you feel the top of your legs burning, this is pretty common. It’s a sign of the hip flexors trying to assist weak abs.
TIP: Like regular crunches, I start breathing out BEFORE the rep and continue breathing out until you get the squeeze at the top. This will give you a far greater abs contraction, and the set will feel 10x harder. That’s a good thing!