Body Bar Challenge with Keli Roberts STRENGTH ????? DEFINITION ????? MUSCLE FIBER The Body Bar Challenge Video: Enjoy high intensity training techniques to produce strength and muscle definition.Class: Beginner to Advanced. Time: 60 minutes. Features: The "Your Body Program" which is committed to fostering personal growth, professional education, and creativity in training through the innovative use of the Body Bar. The program offers an ongoing series of video workouts showing how the brightest and best have taken the Body Bar and combined it with the latest programming trends to create unique and powerful exercises.