Biceps Tendonitis (a.k.a. bicipital tendonitis) is an inflammation or irritation of the long head of the biceps tendon. When it gets irritated, it can be very painful and limit movement in the shoulder. See Doctor Jo’s blog post about this at: http://www.askdoctorjo.com/biceps-tendonitis
Rotator Cuff Tendinitis Exercises to Relieve Shoulder Pain
External Rotation in Prone Position - Lie on side with your elbow resting on stomach. Slowly rotate arm upwards until your lower arm is just above horizontal. This exercise can be initiated using a 2-3 pound dumbbell.