Effects of resistance exercises on rotator cuff muscle mechanical characteristics in shoulders with and without rotator cuff tears

Andrew J. Nasr, Henry Wang, Jijia Wang, Michael Khazzam, Nitin B. Jain, Yen-Sheng Lin · 2026

Read Effects of resistance exercises on rotator cuff muscle mechanical characteristics in shoulders with and without rotator cuff tears by Andrew J. Nasr, Henry Wang, Jijia Wang, Michael Khazzam, Nitin B. Jain, Yen-Sheng Lin (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13215532.txt.

Description

Andrew J. Nasr and co-authors report a 2026 study of how rotator cuff muscles respond to a short bout of low-intensity resistance exercise. They compared shoulders with rotator cuff tears against healthy shoulders using ultrasound-based stiffness measures.

Twenty participants performed thirty isometric contractions at a fifth of their maximum effort, with imaging before and after. In torn shoulders, the supraspinatus grew less stiff under passive conditions after exercise, a change the authors read as poorer adaptation. Muscle cross-section grew in both groups during active testing, and strength fell in everyone. The findings suggest torn muscles recover differently and may need longer rest after rehabilitation exercise.

Catalog record

CREATORAndrew J. Nasr, Henry Wang, Jijia Wang, Michael Khazzam, Nitin B. Jain, Yen-Sheng Lin
YEAR2026
COLLECTIONPAPERS
FORMATTXT
FILE SIZE40 KB
VERSION1.0
LICENSECC BY 4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/articles/PMC13215532

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