The Shoulder joint lacks bony support.  This lack of hard tissue means that mobilizing the joint through resisted movement will foster long term healthy arms and shoulders.  You don't need to (and in fact from certain perspectives shouldn't) over tax your shoulder joint with either aggressive/extreme ranges of motion or weight loads.  Also feeling how the arms and shoulders connect to your torso is an integral practice.  When you move your arm, by necessity your are usually moving  your shoulder blades and to a  lesser extent  your spine.  Crazy!  Just moving your arm, requires a lot of support and function from your whole torso because (...insert dramatic pause...) -they are all connected.

You will need an exercise band approx. 6 feet in length.  I recommend utilizing the lighter range of bands as this is an exploratory  episode.  You will also need to identify two locations in which to secure the band safely.  One location is standing (or sitting) the band should be attached approx. shoulder height from the floor up.  The location is lower -about an arms distance from the floor.  Make sure the attachment is secure and that the band is affixed/tied appropriately at all times.

Welcome to Nucleus Strength; a Podcast devoted to Movement, Health, and Well Being. Host Eric Clothier guides you step-by-step through specific movements and exercises to help you Gain Focus, Move Better, and Feel Stronger. Utilizing his background in Dance, Pilates, Yoga, Gyrotonic®, Gyrokinesis®, Personal Training, Yamuna Body Rolling, as well over a decade of Full Time  hands on training experience Eric frees you to enjoy a joyful, natural, and effortless means of exercise.

Please utilize both the pause button and the speed options during play back for ease and enjoyability.  Remember your exercise regimen is your own province.  You can choose to control how you respond to the variables presented.  Use that confidence to your advantage.  -Enjoy!