Eccentric Isokinetic Rehabilitation for Chronic Lateral Epicondylitis in Female Swimmers: A Randomized Controlled Trial of Bilateral Neuromuscular Adaptations and Functional Performance

dc.contributor.authorDhahbi, Wissem
dc.contributor.authorGhouili, Hatem
dc.contributor.authorCeylan, Halil Ibrahim
dc.contributor.authorAdhadhi, Nessrine
dc.contributor.authorBchini, Souhail
dc.contributor.authorBessifi, Manel
dc.contributor.authorHammami, Nadhir
dc.date.accessioned2026-09-01T15:52:34Z
dc.date.available2026-09-01T15:52:34Z
dc.date.issued2026
dc.departmentBayburt Üniversitesi
dc.description.abstractBackground and Objectives: This study investigated the efficacy of eccentric isokinetic muscle strengthening versus passive motion protocols on neuromuscular function and performance capacity in female swimmers with chronic lateral epicondylitis. Materials and Methods: Twenty-five swimmers (age 46.1 +/- 3.1 years) with lateral epicondylitis exceeding three months' duration completed a randomized controlled trial comparing eccentric training in Controlled Active Motion mode (experimental group (EG), n = 13) against passive motion in Continuous Passive Motion mode (control group (CG), n = 12). Both groups performed 18 supervised sessions over six weeks (60 degrees/s angular velocity, progressive loading 1-12 sets & times; 5 repetitions). Bilateral concentric peak torque of elbow extensors and flexors constituted the primary outcomes. Secondary measures included push-up performance, explosive power assessed by the Seated Medicine Ball Chest Push Test, and goniometric range of motion. Linear mixed-effects models and analysis of covariance with baseline adjustment were employed. Results: Eccentric training produced side-specific strength adaptations in elbow flexors (confirmed interaction: F-1,F-23 = 8.56, p = 0.008, eta(2)(p) = 0.271), with the experimental group demonstrating balanced bilateral gains, whereas the control group exhibited asymmetric responses favoring the non-dominant limb. EG demonstrated superior functional gains: push-up repetitions increased 4.15 +/- 1.77 versus 2.17 +/- 1.27 in CG (adjusted difference = 3.21 repetitions, 95% CI [1.52, 4.90], p = 0.001, d = 1.31), while explosive power improved 0.32 +/- 0.09 m versus 0.10 +/- 0.06 m (adjusted difference = 0.35 m, 95% CI [0.25, 0.45], p < 0.001, d = 1.20). Range of motion remained unchanged across groups (all p > 0.65). Conclusions: Eccentric isokinetic strengthening confers substantial advantages over passive motion protocols for restoring upper-body muscular endurance and ballistic force production in swimmers with lateral epicondylitis, supporting its integration into rehabilitation frameworks for the management of tendinopathy.
dc.identifier.doi10.3390/medicina62030494
dc.identifier.issn1010-660X
dc.identifier.issn1648-9144
dc.identifier.issue3
dc.identifier.pmid41901575
dc.identifier.scopus2-s2.0-105034323657
dc.identifier.scopusqualityQ1
dc.identifier.urihttp://dx.doi.org/10.3390/medicina62030494
dc.identifier.urihttps://hdl.handle.net/20.500.12403/8442
dc.identifier.volume62
dc.identifier.wosWOS:001727123100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherMDPI
dc.relation.ispartofMedicina-Lithuania
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260820
dc.subjectAthletic Injuries
dc.subjectBiomechanical Phenomena
dc.subjectMuscle Contraction
dc.subjectPhysical Therapy Modalities
dc.subjectRehabilitation
dc.subjectResistance Training
dc.subjectTennis Elbow
dc.subjectUpper Extremity
dc.titleEccentric Isokinetic Rehabilitation for Chronic Lateral Epicondylitis in Female Swimmers: A Randomized Controlled Trial of Bilateral Neuromuscular Adaptations and Functional Performance
dc.typeArticle

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