Stability ball work is all about progression. If you want to achieve the
optimal benefits from any stability ball exercises you should master the very
basic ones first. The one leg stabilization is perhaps the most basic exercise
on the stability ball. By simply lifting one leg off of the floor while seated
on a Swiss ball you will be forced to feel how your core is related to your
balance. Feeling your core engaged is the most basic step you will need to
achieve the benefits out of every exercise on the stability ball thus it must be
mastered in this very basic movement. One leg stabilization is a great exercise
to do during your first few workouts on stability balls as it will be mastered
rather quickly opening the door for more intense and challenging exercises.