Purpose: Many coaches feel they appropriately perform shoulder injury prevention programs, but the "typical" shoulder injury prevention program is likely not effective (Hibberd 2012). Many shoulder injury prevention programs do not effectively training the rotator cuff muscles to stabilizer or depress the humerus, one of their main functions (Richardson 1986). Directions: Hold the heaviest weight you can safely hold. Next, walk as far as you can with your shoulder blades back. Perform for approximately 20 - 30 seconds. Make sure not to elevate the shoulders during this exercise.