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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COMPLETED
NA
21 participants
INTERVENTIONAL
2016-06-30
2017-10-31
Brief Summary
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Detailed Description
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Studies investigating the therapeutic effect on PFP revealed that the majority of patients with PFP were still suffering of knee pain after 5 to 8 years, despite initially received treatment and education, indicating that the current treatments fail to prevent the chronicity of symptoms. Considering that current treatment-strategies of patients with PFP seem to be unable to avoid the development of chronic symptoms, the question arises if the underlying factors of PFP are understood sufficiently.
In contrary to the current broad body of literature on weakness, potentially underlying factors which might influence or even lead to PFP, such arthrogenic muscle inhibition (AMI) or the break phenomenon remain understudied.
Pain in PFP has been proven to be linked to quadriceps strength deficit, gluteal strength deficits, knee stability, irregularities in the quadriceps torque curve, and functional performance. Bazett et al. (2011) described that pain "is more than a symptom and might play a role in the etiology or progression of PFP". Furthermore, pain seems to play a crucial role in AMI. However, the correlation between pain and AMI in patients with PFP has not been investigated currently.
No assessment in isolation can provide a full picture of the problem. The combination of AMI, the break phenomenon with a biomechanical analysis might enable the determination of the impact of inhibition and strength on biomechanical changes. In addition, it might provide an answer to whether AMI or weakness cause biomechanical alterations, which would help to optimise treatment approaches in PFP.
The PowersTM strap strap was developed with the aim of assisting lower limb kinematics, decreasing knee varus through supporting femoral abduction and external rotation. This treatment may potentially also directly improve functional performance. As the functional performance in participants with PFP after the application of the PowersTM strap has not been investigated, this study aims to analyse if there is a direct link between the application of the PowersTM strap to functional performance and pain.
Conditions
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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healthy control
Healthy control group will attend one visit and functional performance, muscle strength and flexibility, quadriceps AMI, patellar position and posture will be measured. No intervention will be applied.
PowersTM strap
The powers strap aims to decrease knee varus through supporting femoral abduction and external rotation. Participants will wear the Powers strap while performing functional tasks (running, squatting, single leg step down).
Interventions
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PowersTM strap
The powers strap aims to decrease knee varus through supporting femoral abduction and external rotation. Participants will wear the Powers strap while performing functional tasks (running, squatting, single leg step down).
Eligibility Criteria
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Inclusion Criteria
2. Clearly defined pain location in the peripatellar region
3. Reports of pain greater than 1 month duration.
4. They are able to perform squatting, running and MVC task- Participant response
5. Age range: 18-45 years old
1. Healthy and without any previous lower limb injuries
2. The participant is able to perform squatting, running and MVC task
Exclusion Criteria
2. Previous history of (traumatic) patella dislocation or instability
3. Previous history of ligamentous instabilities
4. Previous history of traumatic, inflammatory or infectious pathology in the lower extremity
5. Previous history of internal derangement or other causes
6. Previous diagnosed degenerative conditions in the knee
7. Exclusion if patients cannot perform running, step down, or MVC task.
18 Years
45 Years
ALL
Yes
Sponsors
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University of Salford
OTHER
Responsible Party
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Henrike Greuel
PhD student, Principal Investigator
Locations
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University of Salford
Salford, Greater Manchester, United Kingdom
Countries
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Other Identifiers
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HSCR15-143
Identifier Type: -
Identifier Source: org_study_id
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