Concentric vs Eccentric Full Can Exercise in Partial Rotator Cuff Tears
Starting soon · Not applicable
Conditions studied: Partial Rotator Cuff Tears, Rotator Cuff Injuries, Shoulder Pain Syndrome
In brief
This study aims to compare the effects of concentric and eccentric full can exercises on supraspinatus muscle architecture in individuals with partial rotator cuff tears. Rotator cuff tears are a common cause of shoulder pain and functional limitation. The supraspinatus muscle plays a key role in shoulder movement and stability, and its structure may be affected in individuals with partial tears. Exercise-based rehabilitation is widely used in the conservative management of these conditions. The full can exercise is commonly prescribed to selectively activate the supraspinatus muscle. However, the effects of different contraction types, specifically concentric and eccentric exercises, on muscle structure and clinical outcomes are not fully understood. In this study, participants will be randomly assigned to either a concentric or eccentric full can exercise group. Both groups will receive a standard physiotherapy program, including therapeutic ultrasound and transcutaneous electrical nerve stimulation (TENS), in addition to the assigned exercise protocol. The intervention will last for 6 weeks, with sessions performed three times per week. Outcomes will be assessed before and after the intervention. The primary outcome is the change in supraspinatus muscle pennation angle measured by ultrasound imaging. Secondary outcomes include muscle architecture parameters, pain intensity, range of motion, muscle strength, functional status, and kinesiophobia. The findings of this study may help improve exercise selection in the rehabilitation of individuals with rotator cuff tears.
Key facts
- Study ID
- NCT07587931
- Run by
- Firat University
- People needed
- 60
- Starts
- 2026-05-20
- Expected to finish
- 2027-01-20
- Last updated by the study team
- 2026-05-14
Who can join
Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Aged between 18 and 65 years
- Diagnosed with partial supraspinatus tendon tear confirmed by ultrasound or magnetic resonance imaging
- Shoulder pain lasting at least 3 months
- Pain intensity ≥3 on the Visual Analog Scale (VAS)
- Willing to participate and provide informed consent
You may not qualify if…
- Full-thickness rotator cuff tear
- History of shoulder surgery
- Shoulder instability
- Neurological disorders
- Rheumatological diseases
- Corticosteroid injection within the last 3 months
- Inability to adhere to the exercise program
Where it is running
- Firat University — Elâzığ, MErkez, Turkey (Türkiye)
Full record on ClinicalTrials.gov
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