Muscle-Up Progression on Low Rings While at the Scholarship Level 1 Course at CrossFit South Philly, Seminar Staff Head Trainer Larry Thomas walks through a muscle-up progression on the low rings. Before an athlete is ready to attempt the muscle-up skill on the high rings, "there's some homework that needs to be done before we get to that point," explains Thomas. "The first step in the progression is going to be ring support." Watch for the full step-by-step skill development. To learn more abou