Effectiveness of High-Dose Shoulder Strengthening for Subacromial Impingement: The SExSI Trial (ptinquest.libsyn.com)

• Additional strengthening significantly improved pain and function.
• Pragmatic design with high external validity.
• Recommended training dose: 3 times/week for 12 weeks.

"A pragmatic, double-blind RCT examined the effectiveness of adding a large dose of shoulder strengthening to usual nonoperative care for subacromial impingement. Results showed significant improvements in pain and function with the addition of strengthening exercise."