- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03273673
Reduction of Risk Factors for ACL Re-injuries Using a Novel Biofeedback Approach
December 3, 2020 updated by: Robin Queen, Virginia Polytechnic Institute and State University
Reduction of Risk Factors for ACL Re-injuries Using an Innovative Biofeedback Approach
ACL injuries are common among athletes and due to residual muscle weakness, limited knee motion and asymmetrical movement patterns after surgery many of these athletes will sustain secondary ACL injuries following return to sports.
This project seeks to determine if a novel biofeedback-based rehabilitation approach can decrease a known risk factor for secondary injuries to the ACL.
The project specifically focuses on correcting asymmetric movement patterns, a known risk factor for secondary injury that is not directly addressed by existing interventions through a 6 week therapy based biofeedback intervention.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Nearly 1 in 60 adolescent athletes will suffer ACL injuries.
Approximately 90% of these injured athletes will undergo an ACL reconstruction at an estimated annual cost of $3 billion.
While reconstruction and subsequent rehabilitation allow these athletes to return to sports, they have a 15 fold increased risk of secondary ACL injuries, a tear of the ACL graft or the contralateral ACL.
As a result, development of an intervention to reduce the incidence of secondary ACL tears would meet a critical need.
One area in which existing interventions might be improved is through an increased emphasis on correcting asymmetric movement patterns-a known risk factor for secondary injury.
Thus, our long-term objective is to decrease the number of secondary ACL tears by decreasing side-to-side movement and loading asymmetry.
The modification of post-operative rehabilitation to focus on movement and loading symmetry with shift the rehabilitation paradigm.
Specifically, we propose to evaluate a novel biofeedback training program that focuses on altering loading and movement patterns to improve symmetry and overall lower extremity mechanics in a group of 40 (20 control, 20 intervention) adolescent ACL reconstructed patients.
There are two core hypotheses of this study: 1) biofeedback training will decrease known risk factors for secondary ACL injuries immediately following the biofeedback program and these changes will be retained 6 week after the completion of the biofeedback program; and 2) we will be able to recruit and enroll 40 patients and retain 80% of the patients through the end of the follow-up assessment demonstrating the feasibility of the biofeedback intervention.
Implementation of a biofeedback program prior to returning to dynamic athletic activities could improve physical performance outcomes, decrease secondary injury risk factors and ultimately decrease the long-term joint degeneration and development of osteoarthritis that has been associated with ACL reconstruction.
Ultimately this work will lead to additional investigations to definitively determine the impact of this novel biofeedback program, which could shift the post-operative rehabilitation paradigm following ACL reconstruction to improve long-term joint health in these adolescent patients.
Study Type
Interventional
Enrollment (Actual)
40
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Virginia
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Blacksburg, Virginia, United States, 24060
- Virginia Tech - Kevin P. Granata Biomechanics Lab
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-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
14 years to 21 years (Child, Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Provision of signed and dated informed consent form
- ACL Reconstruction: primary, unilateral ACL reconstruction with no pain in the contralateral leg
- Rehabilitation: need to have completed at least 4.5 months of post-operative physical therapy and be within approximately 6 weeks of being ready to be released by his/her treating orthopaedic surgeon to return to full sport participation
- Stated willingness to comply with all study procedures and availability for the duration of the study
- Male or female, aged 14-21
- Willing to adhere to the ACL Biofeedback intervention regimen
Exclusion Criteria:
- For females: currently pregnant or planning to become pregnant
- History of more than one ACL reconstruction
- Post-operative complications that required additional surgical intervention
- Hospitalization for any reason other than the ACL reconstruction in the last 3 months
- Plans for additional surgical procedures in the next 12 months
- Live greater than 60 miles from the research lab
- Have limitations that would prevent them from attending the biofeedback training sessions
- Motor neuron diseases, Parkinson's disease, multiple sclerosis
- Severely impaired hearing or speech (patients must be able to respond to phone calls)
- No access to a telephone
- Participating in another ACL intervention
- Inability to understand or speak English (since this will be required for the patient-based intervention)
- Other self-reported medical problem that would prohibit participation in the study
- Other health condition or personal issue judged by a study team member or primary care physician to make the patient inappropriate for study participation
- Knee extension moment limb symmetry index (LSI) greater than or equal to 90% at the time of the initial study assessment
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Biofeedback Intervention
The 6-week biofeedback training program is focused on altering loading and movement asymmetry during biweekly sessions on non-consecutive days (12 sessions).
The biofeedback training program will provide sensory (visual and tactile) feedback to the subject to heighten awareness of asymmetrical movement strategies (e.g.
load shift, movement asymmetry) during a squat.
The two exercises that will be completed during the biofeedback training program will be a visual feedback squat and a resisted squat (tactile feedback).
Each of these tasks will be completed 30 (3 sets of 10 repetitions) times per session.
We will provide a 20 second rest between trials, and a 10 minute break between the visual and tactile feedback exercises to decrease the effect of fatigue.
|
Visual and Tactile Biofeedback
|
No Intervention: Control
The 6-week attention control group program will focus on providing educational information to the participants related to the clinical and sports expectations as they are released to return to sport.
These participants will be asked to meet 6 times during the 6-week intervention time period.
Three of these visits will be completed in person and three will be completed using an online educational module (6 sessions).
The online sessions will be completed in week 1, week 3, and week 5 while the in person sessions will be completed during week 2, week 4, and week 6.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Peak Knee Extension Moment Symmetry
Time Frame: Baseline (week 0) and Post-intervention (week 6)
|
The peak knee extension moment asymmetry will be assessed during the first landing of a stop-jump task
|
Baseline (week 0) and Post-intervention (week 6)
|
Change in Peak Knee Extension Moment Symmetry
Time Frame: Post-intervention (week 6) and Retention (week 12)
|
The peak knee extension moment asymmetry will be assessed during the first landing of a stop-jump task
|
Post-intervention (week 6) and Retention (week 12)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Frontal Plane Knee Range of Motion
Time Frame: Baseline (week 0) and Post-intervention (week 6)
|
The frontal plane knee range of motion will be assessed during the first landing of a stop-jump task
|
Baseline (week 0) and Post-intervention (week 6)
|
Change in Frontal Plane Knee Range of Motion
Time Frame: Post-intervention (week 6) and Retention (week 12)
|
The frontal plane knee range of motion will be assessed during the first landing of a stop-jump task
|
Post-intervention (week 6) and Retention (week 12)
|
Change in Peak Vertical Ground Reaction Force Symmetry
Time Frame: Baseline (week 0) and Post-intervention (week 6)
|
The peak vertical ground reaction force symmetry will be assessed during the first landing of a stop-jump task
|
Baseline (week 0) and Post-intervention (week 6)
|
Change in Peak Vertical Ground Reaction Force Symmetry
Time Frame: Post-intervention (week 6) and Retention (week 12)
|
The peak vertical ground reaction force symmetry will be assessed during the first landing of a stop-jump task
|
Post-intervention (week 6) and Retention (week 12)
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Robin M Queen, PhD, Virginia Polytechnic Institute and State University
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
March 20, 2018
Primary Completion (Actual)
May 5, 2020
Study Completion (Actual)
May 5, 2020
Study Registration Dates
First Submitted
September 1, 2017
First Submitted That Met QC Criteria
September 4, 2017
First Posted (Actual)
September 6, 2017
Study Record Updates
Last Update Posted (Actual)
December 4, 2020
Last Update Submitted That Met QC Criteria
December 3, 2020
Last Verified
December 1, 2020
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 17-007
- R21AR069865-01A1 (U.S. NIH Grant/Contract)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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