Shaped like a stability ball that’s been cut in half, the BOSU® Balance Trainer is one of the most challenging and versatile fitness tools in the exercise market. Now, this book takes BOSU® ball workouts to the next level by showing how to add weight-bearing exercises to a day-to-day routine for the ultimate in strength building and muscle sculpting. By pairing weights with the unique shifting surface of the BOSU® ball, readers simultaneously work primary and secondary muscles while providing the ultimate core-toning workout, whether one is targeting upper- or lower-body muscles. This step-by-step guide with easy-to-follow photos allows anyone to get in the best shape of their life. Beginners, weekend warriors, and even elite athletes get toned with this program, while developing explosive power and speed in an amazingly short period of time.