Resistive Co-contraction Training After Anterior Cruciate Ligament Reconstruction

Study Overview
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Brief Summary
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This study investigates different resistive co-contraction trainings effect on knee strength recovery after ACL reconstruction. Participants will be divided into three groups. Group 1 will receive standard ACL rehabilitation with 8 week co-contraction training in open kinetic chain position, Group 2 will receive standard ACL rehabilitation with 8 week co-contraction training in open kinetic chain position and Group 3 (control group) will only receive standard ACL rehabilitation.

Detailed Description
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Co-contraction trainings can enhance joint stability via improving proprioceptive ability and stimulates muscle activity after injury and/or surgery. The participants will be assigned to the different groups one month after surgery. They will receive 8-week-treatment. Isometric strength of quadriceps and hamstring muscles will be measured at first,third and sixth months after surgery. Concentric and eccentric strength of quadriceps and hamstring muscles will be measured only at sixth months after surgery.

Official Title
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Randomized-controlled,Resistive Co-contraction Training Enhances Strength Recovery After Anterior Cruciate Ligament Reconstruction

Conditions
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Muscle Weakness

Intervention / Treatment
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* Other: Training
* Other: Training
* Other: Training


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: ACL reconstruction with hamstring autograft starting PT program within one week after surgery Exclusion Criteria: Revision surgery serious cartilage damage and/or cartilage repair ACL reconstruction with allograft and patellar tendon graft Having systemic and/or neurological problems

Ages Eligible for Study
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Minimum Age: 17 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Training: open kinetic<br>Co-contraction training in open kinetic chain position 8 weeks, 3 days in a week | Other: Training<br>* Co-contraction training at 60 knee flexion angle by using isokinetic dynamometer<br>|
| Experimental: Training: closed kinetic<br>Co-contraction training in closed kinetic chain position 8 weeks, 3 days in a week | Other: Training<br>* Co-contraction training at 60 knee flexion angle by using leg press machine<br>|
| Active Comparator: Training: Standard ACL rehabilitation<br>Standard ACL rehabilitation 8 weeks, 3 days in a week | Other: Training<br>* Standard ACL rehabilitation<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| knee muscle strength recovery | isometric, concentric and eccentric strength | 8 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| hamstring quadriceps ratio |  | 6 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Knee joint, Muscle strength, anterior cruciate ligament