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When choosing exercise balls, it's important to remember that the more air there is in an exercise ball, the less stability there is. Find out how to use a bumpy exercise ball for a good core challenge with help from a Pilates instructor in this free video on choosing exercise balls.
There are two main types of exercise balls, including traditional round balls and oval-shaped balls that are intended to be used by people who have trouble balancing. Discover why a round exercise ball is great for improving posture with help from a professional personal trainer in this free video on exercise balls.
