The posterior apprehension test is used to detect a poster dislocation or instability of the shoulder. A positive test doesn’t always mean there is a dislocation, and a negative doesn’t necessarily mean there isn’t one. Shoulder instability exercises: https://www.youtube.com/watch?v=5PH5SuL51wI&index=31&list=PLPS8D21t0eO_Ny9ors3aP4K1P_91a2-yw












