A simple basic exercise! And an upgraded version for those who dare!

Stand in plank position. Lift one leg straight up, keeping it extended. Every part of you body except the lifted leg should be in the exact same position as when you started! No hip moves! You can choose if you want to do for expample 15 lifts in a row with the same leg, or alternate after every lift!


The upgraded version requires good balance, since we're taking it up on the ball! The moves are the same, but when you're on the ball your core gets even more engaged, as well as your back, quads and shoulders (and the rest of your body ;)!