My latest Snap Video is Criss-Cross, which focuses on the abs and especially on the obliques, all essential if you want to be the best boarder of skier that you can.
Lie on your back with a neutral spine. Bend your knees and bring your shins up so that they are parallel to the floor. Place your hands behind your head. Keep the neck relaxed and your elbows nice and wide. On the out breath curl the chin and shoulders up to the base of the shoulder blades. Keep your arms relaxed, let the abs do the work. Take the right shoulder towards the left knee ensuring a good rotation, then on the in-breath return to the starting position. Repeat on the left.