Long-Hold Yielding Isometric Exercise for Patellar Tendinopathy in Weightlifting Athletes (NCT07361848) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Long-Hold Yielding Isometric Exercise for Patellar Tendinopathy in Weightlifting Athletes
Spain24 participantsStarted 2027-02-01
Plain-language summary
The goal of this clinical trial is to evaluate whether a long-hold yielding isometric exercise program improves pain, tendon vascularity, mechanical properties, and functional performance in weightlifting athletes with patellar tendinopathy. The study will also explore the safety and feasibility of this exercise strategy.
Researchers will compare the long-hold isometric intervention with routine training recommendations to determine its effects on symptoms and tendon function.
Participants will perform the supervised isometric protocol and complete pain ratings, functional tests, and ultrasound evaluations of the patellar tendon.
Who can participate
Age range18 Years – 45 Years
SexALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
✓. Competitive weightlifting athletes (Olympic weightlifting or CrossFit) training ≥3 times per week.
✓. Age 18-45 years.
✓. Symptom duration of at least 6 weeks.
✓. Presence of vascularized patellar tendinopathy, defined as Doppler-detectable intratendinous neovascularization using standardized settings.
✓. VISA-P score \< 80 at baseline.
✓. Ability to perform loaded lower-limb exercises safely.
✓. Willingness to refrain from other structured isometric interventions focused on the patellar tendon during the study period.
✓. Ability to provide informed consent.
Exclusion criteria
✕. Previous knee surgery within the past 12 months.
✕. Partial or complete patellar tendon rupture (confirmed clinically or by ultrasound).
What they're measuring
1
Functional Disability (Victorian Institute of Sport Assessment Scale for Tendinopathy, VISA-P Score)