SETUP: Lean back onto a decline abs bench and grab the handles (or the bench itself). Keep your feet together and make sure you always have a slight bend at the knees.
REP: Pull your legs up and back, drawing your knees to your chest. Your butt should be off the bench at the top of every rep, as this will fully engage the abs. During the descent, be sure to control your tempo and let your feet travel to level or slightly below the bench (don’t touch the floor).
TIP: Breathe out as you peform each ‘crunch’, it will allow you to get a better squeeze in the abs.