The Mechanical,Physiological and Therapeutic Effects of Eccentric Exercise Combined With Extracorporeal Shockwave Therapy in Athletes With Patellar Tendinopathy
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Enrollment
- 43
- Primary Endpoint
- Tendon stress in pascals at baseline
Study Overview
Brief Summary
Patellar tendinopathy is one of the most common injuries in jumping athletes. Changes in mechanical and physiological properties of tendon are the two proposed forms of pathogenesis. The efficacy of eccentric exercise when applied alone and combined with extrocoporeal shockwave therapy had been reported; however, the underlying treatment mechanisms of pain and dysfunction are not clear. This project aimed to explore the mechanical, physiological and therapeutic effects of eccentric exercise when applied as a single treatment and as an adjunct to extracorporeal shockwave therapy.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Competitive athletes
- •Pain at the inferior pole of the patella with training for at least 3 months
- •Tenderness at the inferior pole of the patella on palpation
Exclusion Criteria
- •Patellofemoral pain syndrome, fat pad irritations, meniscus injury, osteoarthritis, rheumatoid arthritis or infections
- •History of fracture over lower limbs and inflammatory myopathies
- •Cortisone injuection and other interventions within 3 months
- •Contraindication to extracorporeal shockwave therapy
Arms & Interventions
Combined
12 weeks eccentric exercise combined with 6 sessions of extracorporeal shockwave therapy in the initial 6 weeks
Intervention: Eccentric exercise (Behavioral)
Exercise
12 weeks eccentric exercise combined with 6 sessions of sham extracorporeal shockwave therapy in the initial 6 weeks
Intervention: Eccentric exercise (Behavioral)
Outcomes
Primary Outcomes
Tendon stress in pascals at baseline
Time Frame: Before intervention
Tendon stress measured by ultrasonography and dynamometry
Change of tendon stress in pascals at 16 weeks
Time Frame: 16 weeks
Tendon stress measured by ultrasonography and dynamometry
Tendon vascularity index as percentage at baseline
Time Frame: Before intervention
Tendon vascularity measured by power doppler ultrasonography
Change of tendon vascularity index as percentage at 12 weeks
Time Frame: 12 weeks
Tendon vascularity measured by power doppler ultrasonography
Change of tendon stress in pascals at 12 weeks
Time Frame: 12 weeks
Tendon stress measured by ultrasonography and dynamometry
Change of tendon vascularity index as percentage at 16 weeks
Time Frame: 16 weeks
Tendon vascularity measured by power doppler ultrasonography
Secondary Outcomes
- Tendon related pain on visual analogy scale at baseline(Before intervention)
- Change of tendon related pain on visual analogy scale at 12 weeks(12 weeks)
- Change of tendon related pain on visual analogy scale at 16 weeks(16 weeks)
- Tendon related dysfunction by questionnaire at baseline(Before intervention)
- Change of tendon related dysfunction by questionnaire at 12 weeks(12 weeks)
- Change of tendon related dysfunction by questionnaire at 16 weeks(16 weeks)