Easy way to improve shoulders

[Jack 02114]

My right shoulders internal rotation is tight...it's the arm I carry my son on

I've found a real easy way to improve the shoulder instantly

Hold a lacrosse ball in your hand
Extend your arm away from you and straighten it, like you're about to do an exaggerated clap
Soften your elbow and bring the ball hand right into your chest

Now twist and drive the ball into that spot on your chest
Take a deep breath and exhale
Now twist and drive the ball deeper
Repeat for a few minutes