The Natural Movement Kit resistance band shoulder swings are a great advanced exercise for posture, shoulder, core strength, and is especially useful for people playing any sport with rotational components in it. Learn more about properly executing this exercise with the video above.
Regression
Make this exercise easier by moving closer to the anchor to reduce the amount of tension on the Slastix.
Progression
Make this exercise more challenging by moving further away from the anchor or adding another band to increase the tension on the Slastix.