What is the Influence of Visual-motor Reliance on Planned and Unplanned Change of Direction Biomechanics 7 Months Post Anterior Cruciate Ligament Reconstruction?
NCT ID: NCT05141812
Last Updated: 2021-12-02
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
90 participants
OBSERVATIONAL
2021-12-31
2022-12-31
Brief Summary
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Rehab following an ACL reconstruction (ACLR) commonly follows a pathway of: regaining ROM, strength development, power development, running, return to training and then return to competition. However, several studies utilising functional brain MRI and electroencephalogram have demonstrated dysfunction within the somatosensory and visual systems in the ACLR population even after the completion of rehabilitation. This has been suggested to indicate that the ACLR population becomes reliant on their visual system during motor planning and execution, potentially increasing the risk of reinjury.
Detailed Description
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The study will recruit individuals who are 7 months post-ACLR and intend on returning to multi-directional field sport. Individuals will complete a stepping down task (eyes open versus eyes closed) to identify participants who are reliant on their visual system. Participants will then complete a 90 deg change of direction task in a planned and then unplanned condition. Those who are visually reliant will be compared to those who are aren't with regards to their unplanned change of direction biomechanics and also the change in their biomechanics from a planned to unplanned condition.
Conditions
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Study Design
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COHORT
CROSS_SECTIONAL
Study Groups
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ACLR group
ACLR participants would be 7 months post surgery
No interventions assigned to this group
healthy control group
Healthy uninjured participants who are actively engaged in gaelic football or hurling.
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
* Playing club level Gaelic football or hurling
* They must report that they intend on returning to sport at the same or higher level
* Able to give written informed consent and to participate fully in the interventions
* At 7 months biomechanical testing, individuals would need to have 70% symmetry of both quadriceps and hamstring peak torque as measured on our isokinetic dynamometer with the angular velocity set to 60°/s
* Individuals should have already commenced linear running and double leg jumping tasks as part of their rehabilitation
* They are currently attending a gym or can attain gym access for the duration of intervention period
Exclusion Criteria
* Revision ACL
* They underwent concurrent meniscal repair, chondral repair or extra-articular augmentation
* Serious medical conditions preventing them from completing high intensity resistance exercise
* Any previous: injuries to the visual system, concussion, head injury, unexplained seizures or epilepsy
* Any previous ankle or knee injuries
* Those who are uncomfortable or do not want to hop with their eyes closed (one of the assessment tasks will involve hopping on one leg with their eyes open and followed by another set in which their eyes are closed
18 Years
35 Years
MALE
Yes
Sponsors
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Sports Surgery Clinic, Santry, Dublin
OTHER
Responsible Party
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Locations
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Sports Surgery Clinic
Dublin, Leinster, Ireland
Countries
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Central Contacts
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Facility Contacts
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Andy D Franklyn-Miller, MBBS
Role: primary
Enda A King, BSc, MSc
Role: backup
Other Identifiers
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SSC-ACL-003
Identifier Type: -
Identifier Source: org_study_id