SETUP: Lie flat on the floor. Bend your knees and place your feet flat on the ground. Arms should be out straight in front of you, reaching for your legs.
REP: Crunch up by squeezing your abs hard. Notice the slight movement of my pelvis? I’m pushing my feet into the ground as I perform the crunch, so that I can tilt my pelvis towards my abs for an even better contraction. Use your hands as a guide for completing each rep; they should travel to your knees.
TIP: Most people get the breathing dead wrong on this exercise. Either they hold their breath, or they breath out during the crunch. While the second approach is definitely better than the first, there is a superior way. Start breathing out BEFORE you start the rep, and continue breathing out as you hit the crunch. You’ll feel these like never before.