Isokinetic Evaluation of Quadriceps and Hamstring Muscle Performance in the Rehabilitation Phase after ACL Reconstruction

Anterior cruciate ligament (ACL) reconstruction requires comprehensive rehabilitation to restore neuromuscular function and minimize reinjury risk. Quantitative assessment is essential for evaluating muscle recoveryand guiding return-to-activity decisions. This study aimed to assess isokinetic stren...

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Main Authors: Nicolae Stanciu, Razvan Marian Melinte, Mark Slevin, Octav Marius Russu, Cristian Trâmbițaș, Cezara Ilinca Stanciu, Elena Georgiana Bălănescu, Dan Avrămiuc, Gabriel Koszoruș, Klara Brînzaniuc
Format: Article
Language:English
Published: Romanian Association of Balneology, Editura Balneara 2025-06-01
Series:Balneo and PRM Research Journal
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Online Access:https://bioclima.ro/Balneo820.pdf
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author Nicolae Stanciu
Razvan Marian Melinte
Mark Slevin
Octav Marius Russu
Cristian Trâmbițaș
Cezara Ilinca Stanciu
Elena Georgiana Bălănescu
Dan Avrămiuc
Gabriel Koszoruș
Klara Brînzaniuc
author_facet Nicolae Stanciu
Razvan Marian Melinte
Mark Slevin
Octav Marius Russu
Cristian Trâmbițaș
Cezara Ilinca Stanciu
Elena Georgiana Bălănescu
Dan Avrămiuc
Gabriel Koszoruș
Klara Brînzaniuc
author_sort Nicolae Stanciu
collection DOAJ
description Anterior cruciate ligament (ACL) reconstruction requires comprehensive rehabilitation to restore neuromuscular function and minimize reinjury risk. Quantitative assessment is essential for evaluating muscle recoveryand guiding return-to-activity decisions. This study aimed to assess isokinetic strength of the quadriceps, hamstrings, adductors, and abductors during the rehabilitation phase following ACL reconstruction.Methods:Eighty-five patients who underwent ACL reconstruction were evaluated using the Easy Torque isokinetic device. Peak torque and relative strength (N/kg) were measured bilaterally for key lower limb muscles. Subgroup analyses were conducted based on sex and athletic background to explore differences in muscle performance and recovery patterns.;Results:Isokinetic testing revealed no significant strength asymmetries between the operated and non-operated limbs for quadriceps and hamstrings, indicating effective bilateral recovery. While male and athletic participants exhibited higher absolute and relative strength values (p < 0.05), recovery rates were consistent across subgroups. Adductor and abductor strength also showed post-rehabilitation symmetry and robustness, supporting their relevance in functional assessment.;Conclusions: The findings support the use of isokinetic testing as a reliable tool for evaluating post-ACL muscle recovery. Standardized rehabilitation protocols effectively restored muscle symmetry across patient profiles, underscoring the value of comprehensive, multi-muscle assessment in return-to-sport decision-making.
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record_format Article
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spelling doaj-art-c034b6b8f45b4ce69a63168ba3f181a22025-07-21T12:35:31ZengRomanian Association of Balneology, Editura BalnearaBalneo and PRM Research Journal2734-84582025-06-0116282010.12680/balneo.2025.820Isokinetic Evaluation of Quadriceps and Hamstring Muscle Performance in the Rehabilitation Phase after ACL ReconstructionNicolae Stanciu0Razvan Marian Melinte 1Mark Slevin2Octav Marius Russu 3Cristian Trâmbițaș 4Cezara Ilinca Stanciu 5Elena Georgiana Bălănescu6Dan Avrămiuc 7Gabriel Koszoruș 8Klara Brînzaniuc 9Doctoral School of Medicine and Pharmacy, George Emil Palade University of Medicine, Pharmacy, Scienceand Technology of Targu Mures, 540139 Targu Mures, Romania; Department of Anatomy, George Emil Palade University of Medicine, Pharmacy, Science and Technology ofTargu Mures, 540139 Targu Mures, Romania1st Department of Orthopedics and Traumatology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 8 Victor Babes Street, Cluj-Napoca, 400012, RomaniaRegenerative Medicine Laboratory, Centre for Advanced Medical and Pharmaceutical Research (CCAMF),George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540139 Targu Mures, RomaniaDepartment of Orthopedics and Traumatology I, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540139 Targu Mures, Romania; Department of Orthopedics and Traumatology, Clinical County Hospital of Mureș, 540139 Targu Mures, RomaniaDepartment of Plastic Surgery, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540139 Targu Mures, RomaniaClinic of Infectious Diseases, Mures County Hospital, 540139 Targu Mures, RomaniaFaculty of Medicine, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540139 Targu Mures, RomaniaDimitrie Cantemir University, Targu Mures, RomaniaDepartment of Public Health and Health Services Management, Mures County Emergency Hospital, 540136 Targu Mures, RomaniaDepartment of Anatomy, George Emil Palade University of Medicine, Pharmacy, Science and Technology ofTargu Mures, 540139 Targu Mures, RomaniaAnterior cruciate ligament (ACL) reconstruction requires comprehensive rehabilitation to restore neuromuscular function and minimize reinjury risk. Quantitative assessment is essential for evaluating muscle recoveryand guiding return-to-activity decisions. This study aimed to assess isokinetic strength of the quadriceps, hamstrings, adductors, and abductors during the rehabilitation phase following ACL reconstruction.Methods:Eighty-five patients who underwent ACL reconstruction were evaluated using the Easy Torque isokinetic device. Peak torque and relative strength (N/kg) were measured bilaterally for key lower limb muscles. Subgroup analyses were conducted based on sex and athletic background to explore differences in muscle performance and recovery patterns.;Results:Isokinetic testing revealed no significant strength asymmetries between the operated and non-operated limbs for quadriceps and hamstrings, indicating effective bilateral recovery. While male and athletic participants exhibited higher absolute and relative strength values (p < 0.05), recovery rates were consistent across subgroups. Adductor and abductor strength also showed post-rehabilitation symmetry and robustness, supporting their relevance in functional assessment.;Conclusions: The findings support the use of isokinetic testing as a reliable tool for evaluating post-ACL muscle recovery. Standardized rehabilitation protocols effectively restored muscle symmetry across patient profiles, underscoring the value of comprehensive, multi-muscle assessment in return-to-sport decision-making.https://bioclima.ro/Balneo820.pdfisokinetic evaluationacl reconstructionmuscle strength symmetryrehabilitation out-comesreturn-to-sport assessment
spellingShingle Nicolae Stanciu
Razvan Marian Melinte
Mark Slevin
Octav Marius Russu
Cristian Trâmbițaș
Cezara Ilinca Stanciu
Elena Georgiana Bălănescu
Dan Avrămiuc
Gabriel Koszoruș
Klara Brînzaniuc
Isokinetic Evaluation of Quadriceps and Hamstring Muscle Performance in the Rehabilitation Phase after ACL Reconstruction
Balneo and PRM Research Journal
isokinetic evaluation
acl reconstruction
muscle strength symmetry
rehabilitation out-comes
return-to-sport assessment
title Isokinetic Evaluation of Quadriceps and Hamstring Muscle Performance in the Rehabilitation Phase after ACL Reconstruction
title_full Isokinetic Evaluation of Quadriceps and Hamstring Muscle Performance in the Rehabilitation Phase after ACL Reconstruction
title_fullStr Isokinetic Evaluation of Quadriceps and Hamstring Muscle Performance in the Rehabilitation Phase after ACL Reconstruction
title_full_unstemmed Isokinetic Evaluation of Quadriceps and Hamstring Muscle Performance in the Rehabilitation Phase after ACL Reconstruction
title_short Isokinetic Evaluation of Quadriceps and Hamstring Muscle Performance in the Rehabilitation Phase after ACL Reconstruction
title_sort isokinetic evaluation of quadriceps and hamstring muscle performance in the rehabilitation phase after acl reconstruction
topic isokinetic evaluation
acl reconstruction
muscle strength symmetry
rehabilitation out-comes
return-to-sport assessment
url https://bioclima.ro/Balneo820.pdf
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