Tie one end of the resistance band to a safe place. Get on all fours and grab the other end of the resistance band with the hand furthest from the tied end. Keep resistance band on the inside of your closest arm.
Take resistance band and extend away from your body out to your side, a little above shoulder level, keeping the arm as straight as possible. Slowly bring back to the starting position. Try to do 2 sets of 10-12 repetitions for each arm.
Keep spine in a neutral position and head looking forward, not down.
Muscles Worked: Shoulders