ArticleJournal of clinical orthopaedics and trauma2021
Tolerance and effectiveness of eccentric vs. concentric muscle strengthening in rotator cuff partial tears and moderate to severe shoulder pain. A randomized pilot study.
Article in Journal of clinical orthopaedics and trauma, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05969652 (Comparison of the Effectiveness of Supervised Heavy Slow Resistance Training and Eccentric Exercise Training in Patients With Rotator Cuff Tendinopathy), which is not on this map. Cited by 11 papers, 4 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Comparison of the Effectiveness of Supervised Heavy Slow Resistance Training and Eccentric Exercise Training in Patients With Rotator Cuff Tendinopathy: A Randomized Controlled Clinical Trial
Who cites it
11 citing papers in PubMed, 4 syntheses or guidelines pooled it, 22 citations in OpenAlex.
- Exercise interventions for rotator cuff-related shoulder pain in middle-aged and older adults: a systematic review and meta-analysis.BMC musculoskeletal disorders · 2026Pooled it
- Surgical vs. non-surgical therapy for partial tears of the rotator cuff: a systematic review and meta-analysis of pooled studies with indirect comparison.BMC musculoskeletal disorders · 2026Pooled it
- Effects of seven types of exercise in the treatment of rotator cuff-related shoulder pain (RCRSP): a systematic review and Bayesian network meta-analysis.Journal of orthopaedic surgery and research · 2025Pooled it
- Specific modes of exercise to improve rotator cuff-related shoulder pain: systematic review and meta-analysis.Frontiers in bioengineering and biotechnology · 2025Pooled it
- Comparison of nonsurgical treatment approaches for partial rotator cuff tears: a systematic review and meta-analysis.JSES reviews, reports, and techniques · 2026Review
- Faster and Superior Functional Recovery and Sleep Quality with Steroid Injection Versus Physical Therapy for Partial-Thickness Supraspinatus Tendon Rupture.Clinics in orthopedic surgery · 2026Article
- Painful considerations in exercise-management for rotator cuff related shoulder pain: a scoping review on pain-related prescription parameters.BMC musculoskeletal disorders · 2025Article
- Effect of Eccentric Control Exercises on Patients with Frozen Shoulder and Mild to Moderate Disability: A Single-Group Pre-Post Study.F1000Research · 2025Article
- Reliability and validity of new isokinetic strength assessment for rotator cuff muscles in a muscle architecture-based position.Turkish journal of medical sciences · 2024Article
- Relationship between strength training and shoulder pain in male and female water polo players.Journal of exercise rehabilitation · 2023Article
- Finite element study of the biomechanical effects on the rotator cuff under load.Frontiers in bioengineering and biotechnology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionRotator cuff tears are the main cause of shoulder pain and disability. First line of treatment is conservative; there is evidence regarding the advantage of using eccentric over concentric exercises in tendinopathies, but there are no evidence-based recommendations on starting strengthening exercise during painful phases nor on the effectiveness and advantages of eccentric vs. concentric exercise in rotator cuff tears.
objectiveTo evaluate the tolerance of a resistance strengthening program and to compare eccentric vs. concentric programs.
designA pilot, experimental, randomized controlled study.
settingOutpatient Rehabilitation Center. PATIENTS: Twenty-six patients with a diagnosis of partial rotator cuff tear were randomly assigned to: the experimental group (eccentric,
interventionThe experimental group performed muscle strengthening with eccentric technique directed to shoulder and scapular girdle muscles, while the control group performed the concentric technique.
main outcome measuresVisual Analogue Scale (VAS), Constant Scale, Strength, Structure (Ultrasound report).
resultsThe tolerance rate was 96% in both groups. Median age (experimental vs. control) was 54.5 vs. 54 years (
conclusionsEccentric and concentric strengthening were well tolerated; both show early improvement in pain, functionality and tendon structure. Eccentric training appears to be more effective than concentric in the early improvement of functionality, strength and tendon healing.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.