SETUP: Lie flat on the ground. Place your fingers hands on the side of your head – don’t hook your hands behind your head, this causes people to yank their neck, which is always a bad move.
REP: Crunch up by squeezing your abs and breathing out. Notice the direction, I’m crunching up at a diagonal angle, rather than straight up. As your elbow will move toward the center line of your body, and the opposing knee should rise to meet it. Don’t worry if you cannot make physical contact between the two, that’s not the point, simply working in this diagonal range of motion will fully engage the abs and obliques.
TIP: Notice how my ‘resting leg’ is still off the ground (see video)? I do this to maintain constant tension.