In this video, we learn how to train your core with gymnastic rings. Instead of attaching each gymnastic ring handle to a fixed bar. This will now become a pulley system that requires a ton of strength to use. After you have this set up, you can do different exercises while hanging down diagonally and holding onto the handles. You will have to plant your feet into the ground and use a lot of strength in your core to keep the pulleys moving and keeping you in place. Try using these for different exercises and switch things up every few reps for a whole body workout.