Crossing

Muscle

Abs

Equipment

Bodyweight

Measured in

Reps

How to do it

Lying on your back, bring your knees up towards your chest and lift your shoulders and head off the floor. Place your hands behind your head with your elbows out to the sides. As you inhale, engage your core by drawing your belly button towards your spine. Straighten your right leg out in front of you, slightly off the floor, and twist your upper body towards it, aiming for your right elbow to touch your left knee. As you inhale, readjust your position by touching your left elbow to your right knee, straightening your left leg, and maintaining the twisted position of your body while fully exhaling.