There are two variations of this exercise: one for core stability and one for torso mobility. To start, grab a medicine ball that's between five and 15 pounds. Stand with your feet shoulder-width apart, making sure your knees are not locked.
- Start with the ball at chest level, and slowly write the cursive alphabet in front of you.
- While your arms move around in all sorts of angles, you need to use your abs to keep your torso still. Think of keeping the area between your ribs and pelvis solid.
- For a more advanced version, try this move while standing on a BOSU.
- Start with the ball at chest level, but increase the range of motion of your arms by making your alphabet larger and using your torso and rib cage to write the letters as well.
- Keep your abs engaged the entire time, and start with a lighter medicine ball. For more of a challenge, try this version in a squat or a lunge.