Warm-up: 400m run followed by 5 minutes of Muscle-up transition practice. Then: 3 rounds of 10 walking lunges, 5 pull ups, 3 MU transitions to dip or static hold. Workout: “Jason” For time: 100 Squats 5 Muscle-ups 75 Squats 10 Muscle-ups 50 Squats 15 Muscle-ups 25 Squats 20 Muscle-ups Post time to comments. Cool-down: 5 minutes of targeted stretching to the glutes and lower back “Growing Up CrossFit” with Annie Thorisdottir, CrossFit Journal preview video [wmv] [mov]