LATEST UPLOADS 3/20: WHY 'CAN TESTS SUCK' - AND A BETTER ALTERNATIVE TO TEST THE ROTATOR CUFF MUSCLES Nearly all of us have learned the 'empty can' (EC) and 'full can' (FC) in order to selectively test the supraspinatus. But are those tests actually able to isolate the supraspinatus muscle that well? Boettcher et al. (2009) examined the EMG activity of 13 muscles in 15 normal subjects and found that the EC test also equally activated nine other shoulder muscles "It was concluded from these resul

🎥 EMPTY CAN SIGN Ever heard of the Empty Can Test? 🥤 It’s a simple clinical test we use to check for supraspinatus muscle tears or tendon injury—a key part of the rotator cuff in your shoulder. 💪🏽🦴 👉 In the test, the arm is placed as if you’re pouring out a can (hence the name). 👉 Pain or weakness when resisting downward pressure suggests possible rotator cuff pathology. ✅ What it signifies: • Supraspinatus tendon tear • Rotator cuff tendinopathy • Shoulder impingement 💡 Remember: Not al