- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02243332
Dynamic Quadriceps Muscle Stimulation for Treatment of Patellofemoral Pain
Study Overview
Status
Intervention / Treatment
Detailed Description
The interventional device will be tested with 20 women aged 18-40 with evidence of patellofemoral pain syndrome (PFPS) and without any co-morbidities that would confound data or contraindications for NMES use. All participants will be enrolled at a single site (Developmental Motor Lab at the University of Texas), and all of a single participant's testing will be complete within a single day with no requirement for follow-up or long-term participation. Participants will have their gait and quadriceps muscle activation patterns evaluated through four six-minute walk tests (6MWT). The first 6MWT will be without a device, second with a device worn but not activated, third with a device activated and stimulating quadriceps musculature, and the fourth without a device.
Primary Objective: The purpose of this study is to investigate whether electrical stimulation of the vastus medalis (VM) and/or vastus lateralis (VL) to establish coactivation of these muscles during terminal swing phase impacts severity of PFPS symptoms
Secondary Objectives: Secondary purposes for this study include evaluating KneeStim and seeing if there is any evidence of proof of concept in two main areas:
KneeStim as a therapeutic device that may assist individuals with joint rehabilitation KneeStim's on-board operating system and motion tracking system as an effective way to monitor joint kinematics.
This pilot study has a prospective, controlled, single-center design. Participants and investigators will not be blinded to the treatment. Individuals who evaluate the motion-tracking data between VICON and KneeStim will not be informed which data set aligns with which treatment.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
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Texas
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Austin, Texas, United States, 78712
- Developmental Motor Control Lab; University of Texas at Austin
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Aged 18-40 years
- Symptomatic PFPS on Patella Glide Test, Patella Tilt Test, and Patellar Apprehension Test.
Exclusion Criteria:
- Rheumatoid arthritis or inflammatory arthritis as assessed by licensed physician
- Use of walking aids other than a cane more than 50% of the time in ambulation
- Diagnosed knee disorder other than patellofemoral syndrome
- Pacemaker use, unstable angina, or decompensated heart failure
- Knee replaced in preceding 12 months or replacement planned within 6 months
- Moderate to severe dementia
- Pregnancy (self report)
- Altered sensation at the knee such that the patient is unable to perceive the presence of pinprick.
- Use of intra-articular viscosupplementation or steroid injection within preceding 2 months.
- Use of chronic anticoagulation medication.
- Movement-limiting pain in the back, hip, ankle, or foot of either lower limb.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Device (rehabilitation assistance)
Device: KneeStim mobile rehabilitation assistance device
|
KneeStim is a neuromuscular electrical stimulation (NMES) device that integrates motion-tracking hardware like three-axis accelerometers and a real-time operating system to enable quadriceps muscle stimulation in time with user gait.
It is a completely non-invasive device that looks like a light brace and fastens to the user's quadriceps and gastrocnemius muscles.
The end goal of this device is to assist with muscle re-strengthening and re-education during a user's everyday activities.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Measured Quadriceps Musculature Co-Contraction
Time Frame: 20, 40, 60, 80 minutes from start of single-day testing
|
Electromyographic (EMG) readings of vastus lateralis and vastus medialis contraction patterns will be taken after four six-minute walk tests (6MWTs) to evaluate any short-term changes in co-contraction. 6MWT #1: Without interventional device being worn; 6MWT #2: With interventional device being worn, but unpowered; 6MWT #3: With interventional device being worn and operational; 6MWT #4: Without interventional device being worn The time period in which a partipant will be involved is not expected to exceed 90 minutes. |
20, 40, 60, 80 minutes from start of single-day testing
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Anterior Knee Pain
Time Frame: 20, 40, 60, 80 minutes from start of single-day testing
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Measured with Anterior Knee Pain Scale (AKPS) after each Six Minute Walk Test.
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20, 40, 60, 80 minutes from start of single-day testing
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Device Joint Model Accuracy
Time Frame: 20, 40, 60, 80 minutes from start of single-day testing
|
The interventional device uses an on-board operating system that determines stimulation timing and location based on modeled joint kinematics.
Movement data will be taken from the device and evaluated against movement data measured by a VICON motion-tracking system during each six-minute walk test to evaluate the accuracy of the device's modeled joint kinematics.
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20, 40, 60, 80 minutes from start of single-day testing
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Lisa Griffin, Ph.D., University of Texas at Austin
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- ALI-KS-001
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.
Clinical Trials on Patellofemoral Pain Syndrome
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Lauren EricksonAmerican College of Sports MedicineCompleted
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Laval UniversityCompletedPatellofemoral Pain (PFPS)Canada
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Nationwide Children's HospitalCompletedPatellofemoral Pain Syndrome | Knee Pain Chronic | Anterior Knee Pain Syndrome | Patellofemoral SyndromeUnited States
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Istanbul Medipol University HospitalCompletedPatellofemoral Pain Syndrome | Patellofemoral Pain | Anterior Knee Pain Syndrome | Patellofemoral Syndrome | Kinesiotape | Orthotic DevicesTurkey
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University of MelbourneNational Health and Medical Research Council, AustraliaCompletedKnee Pain | Patellofemoral PainAustralia
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University of Central LancashireCompletedPatellofemoral PainUnited Kingdom
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Universidade Federal do CearaCompletedPatellofemoral Pain SyndromeBrazil
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European University CyprusCompleted
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Universidade Federal do Rio Grande do NorteUnknown
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