The Amazing Stickie likes to ensure that her shoulders function like they should. She does arm arcs to assist her in keeping them both stable and mobile.
She begins by lying on her back with her knees bent and feet flat on the floor. (It would also be all right for her to extend her legs long, but it’s usually more comfortable to work with the knees bent.) She has her arms down by her sides. For the full length of her inhale, she raises her arms until they are over her head. Then, for the full length of her exhale, she lowers them back to the starting position. At first, this seemed like a very slow pace, but now Stickie enjoys it. She does a set of ten. Then, to make things more interesting, she puts one arm overhead and one down by her hips to start. Then she swaps their positions. Even though her arms are moving in opposite directions, Stickie maintains her shoulder blades in a neutral position on both sides.
Sometimes for fun, Stickie does the same exercise lying on a foam roller (roller along her spine) or on an Oov. It feels extra good and adds more challenge.