Ultrasound mirror for shoulder pain: new study tests Real-Time muscle training

This study compares two ways to help people with shoulder pain activate important muscles: using real-time ultrasound images versus standard verbal or visual feedback. About 26 adults with shoulder pain will do exercises in a lab, and researchers will measure muscle activity and joint space before and after training. The goal is to see if ultrasound feedback leads to better muscle control and less pain during everyday arm movements.