Patellar Tendinopathy - The Effect of Load Magnitude in Exercise-based Treatment
- Conditions
- Patellar TendinopathyJumper's Knee
- Registration Number
- NCT03096067
- Lead Sponsor
- Bispebjerg Hospital
- Brief Summary
The purpose of this project is to investigate if the magnitude of a loading based 12 weeks rehabilitation regime for patellar tendinopathy influence the clinical outcome, tendon structure and function.
The investigators hypothesize that a greater magnitude (90% of 1RM) of loading will yield a more positive clinical outcome, tendon structure and function in patients with patellar tendinopathy compared to a lower magnitude of loading (55% of 1 RM) when total exercise volume is equal in both groups.
- Detailed Description
Randomized controlled intervention study with one year follow-up
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Male
- Target Recruitment
- 44
- Uni- or bilateral patellar tendinopathy
- Symptoms > 3 months
- Ultrasonographical tendon swelling
- Ultrasonographical hypo-echoic area with doppler
- BMI 18.5-30
- Patellar tendinopathy > 12 month
- Previous knee surgery
- Confounding diagnosis to the knee joint
- Diabetes or arthritis
- Previous corticosteroid injection for patellar tendinopathy
- Smoking
- Being elite volleyball players
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Primary Outcome Measures
Name Time Method Change from baseline Victorian Institute of Sports Assessment - Patella Questionnaire (VISA-P) at 12 wks 0-12 wks Patient reported outcome regarding symptoms, function and the ability to participate in sports
- Secondary Outcome Measures
Name Time Method Pain rating on numeric rating scale (NRS) and activity level of sporting activities (h/wk) 0,6,12 wks + 1 yr follow up + Long-term follow-up (2-4 yr) Questionnaire
Mechanical properties 0 and 12 wks Synchronized tendon elongation with the use of ultrasonography along with force measures, will be used during voluntary contractions to determine mechanical properties
Victorian Institute of Sports Assessment - Patella Questionnaire (VISA-P) 0 and 6 wks + 1 yr follow up + Long-term follow-up (2-4 yr) Patient reported outcome regarding symptoms, function and the ability to
Tendon thickness and Doppler activity 0,6,12 wks + 1 yr follow up + Long-term follow-up (2-4 yr) Measured by ultrasound
Treatment satisfaction 12 wks + 1 yr follow-up + Long-term follow-up (2-4 yr) Questionnaire
Single-leg decline squat (SLDS) test 0,6, 12 wks + 1 yr follow up + Long-term follow-up (2-4 yr) A reliable patellar tendon pain provocation test, will be used to assess pain during function
Jump test 0 and 12 wks Squat jump and Counter movement Jump will be used to assess patellar tendinopathy caused functional deficits on the injured site compared with the non-injured site
Muscle strength 0 and 12 wks Maximal muscle strength of the knee extensors is obtained during a maximal voluntary contractions
Tendon dimensions and structure 0 and 12 wks Measured by MRI
Related Research Topics
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Trial Locations
- Locations (1)
Department of Physical and Occupational Therapy / Institute of Sports Medicine Copenhagen, Bispebjerg Hospital
🇩🇰Copenhagen, Denmark
Department of Physical and Occupational Therapy / Institute of Sports Medicine Copenhagen, Bispebjerg Hospital🇩🇰Copenhagen, Denmark