Check out the best ab exercises you can do using one Swiss ball. Swiss ball plank alphabets The exercise tests shoulder and core stability, coordination and balance while strengthening the same ...
Also known as Swiss balls, physio balls or stability balls ... has shared four of her favourite core exercises which can be done at home or in the gym using just an exercise ball.
Add time as you get stronger and more confident. You could also mix some Swiss ball planks and work between moving and static exercises as part of a core-strengthening superset.