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Effect of Rehabilitation Programs Based on Eccentric Exercise of Knee Extensor Muscles in Isotonic and Isokinetic Conditions After Anterior Cruciate Ligament Reconstruction

Effect of Rehabilitation Programs Based on Eccentric Exercise of Knee Extensor Muscles in Isotonic and Isokinetic Conditions After Anterior Cruciate Ligament Reconstruction

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02961543
Enrollment
30
Registered
2016-11-11
Start date
2016-07-31
Completion date
2017-12-31
Last updated
2018-02-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anterior Cruciate Ligament Injury

Brief summary

A randomized clinical trial involving 30 individuals submitted to ACL reconstruction will be conducted. Participants will be randomized into: Group I, submitted to a muscular rehabilitation program based on eccentric isokinetic exercise; and Group II, submitted to a muscular rehabilitation program based on eccentric isotonic exercise. Concomitantly with the muscular rehabilitation protocols, individuals will undergo the same physiotherapeutic protocol with analgesia, edema reduction, range of motion, proprioception and functionality goals. Muscle rehabilitation programs based on eccentric isotonic and isokinetic exercise will begin 45 days after ACL reconstruction. The programs will last six weeks, with training frequency of two sessions per week, separated by a minimum interval of 72 hours.

Interventions

The individuals of both groups will be submitted to the same physiotherapeutic protocol with objectives of analgesia, reduction of edema, recovery of range of motion, proprioception and functionality. 45 days after ACL reconstruction, subjects randomly allocated to this arm will be submitted to a muscle rehabilitation program based on isokinetic eccentric exercise lasting six weeks, with training frequency of two sessions per week, separated by a minimum interval of 72 hours.

The individuals of both groups will be submitted to the same physiotherapeutic protocol with objectives of analgesia, reduction of edema, recovery of range of motion, proprioception and functionality. 45 days after ACL reconstruction, subjects randomly allocated to this arm will be submitted to a muscle rehabilitation program based on isotonic eccentric exercise lasting six weeks, with training frequency of two sessions per week, separated by a minimum interval of 72 hours.

Sponsors

Federal University of Health Science of Porto Alegre
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
MALE
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Young adults aged between 18 and 40 years; * Recreational athletes; * Unilateral ACL injury; * Presence of total or partial rupture of unilateral ACL within 90 days after injury; * Male subjects; * Classification of body mass index up to pre-obese (25.0 - 29.9 kg / m2); * Not undergoing any strength training program for the lower limbs in the six months prior to the study. * Acceptance of individuals in participating in the procedures proposed by the research.

Exclusion criteria

* Recidivism in ligament injuries; * Associated ligament and / or meniscal lesions; * Previous history (\<6 months) of musculoskeletal lesions in the thigh; * Patellar tendinopathy; * Patellofemoral pain syndrome; * Respiratory or cardiovascular conditions that limit the performance of exercises; * Users of dietary supplements or anabolic steroids

Design outcomes

Primary

MeasureTime frame
The femoral quadriceps muscle mass through nuclear magnetic resonance imagingChange from baseline and six weeks after intervention protocol

Secondary

MeasureTime frame
Performance of knee extensors through computerized dynamometryChange from baseline and six weeks after intervention protocol
Functionality of the individuals through Lysholm scoreChange from baseline and six weeks after intervention protocol
Functionality of the individuals through single and triple hop testChange from baseline and six weeks after intervention protocol

Countries

Brazil

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026