The Mechanical,Physiological and Therapeutic Effects of Eccentric Exercise Combined With Extracorporeal Shockwave Therapy in Athletes With Patellar Tendinopathy

Patellar Tendinopathy Clinical Trial

Official title:

The Mechanical,Physiological and Therapeutic Effects of Eccentric Exercise Combined With Extracorporeal Shockwave Therapy in Athletes With Patellar Tendinopathy

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04650997
• Other study ID #: HSEARS20110215003
• Status: Completed
• Phase: N/A
• Start date: February 16, 2011
• Est. completion date: January 1, 2014

Study information

• Verified date: February 2011
• Source: The Hong Kong Polytechnic University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 43
• Est. completion date: January 1, 2014
• Est. primary completion date: January 1, 2014
• Accepts healthy volunteers: No
• Gender: All
• Age group: N/A and older

Eligibility

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

Related Conditions & MeSH terms

• Patellar Tendinopathy
• Tendinopathy

Intervention

Behavioral:
• Eccentric exercise
Knee eccentric exercise with sham or focused extrocorporeal shockwave therapy for 12 weeks

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
The Hong Kong Polytechnic University

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Tendon stress in pascals at baseline	Tendon stress measured by ultrasonography and dynamometry	Before intervention
Primary	Change of tendon stress in pascals at 12 weeks	Tendon stress measured by ultrasonography and dynamometry	12 weeks
Primary	Change of tendon stress in pascals at 16 weeks	Tendon stress measured by ultrasonography and dynamometry	16 weeks
Primary	Tendon vascularity index as percentage at baseline	Tendon vascularity measured by power doppler ultrasonography	Before intervention
Primary	Change of tendon vascularity index as percentage at 12 weeks	Tendon vascularity measured by power doppler ultrasonography	12 weeks
Primary	Change of tendon vascularity index as percentage at 16 weeks	Tendon vascularity measured by power doppler ultrasonography	16 weeks
Secondary	Tendon related pain on visual analogy scale at baseline	Maximal intensity of self-perceived pain in the past 7 days, pain during single-leg declined-squat test	Before intervention
Secondary	Change of tendon related pain on visual analogy scale at 12 weeks	Maximal intensity of self-perceived pain in the past 7 days, pain during single-leg declined-squat test	12 weeks
Secondary	Change of tendon related pain on visual analogy scale at 16 weeks	Maximal intensity of self-perceived pain in the past 7 days, pain during single-leg declined-squat test	16 weeks
Secondary	Tendon related dysfunction by questionnaire at baseline	Victorian Institute of Sport Assessment Questionnaire - Patellar Tendon	Before intervention
Secondary	Change of tendon related dysfunction by questionnaire at 12 weeks	Victorian Institute of Sport Assessment Questionnaire - Patellar Tendon	12 weeks
Secondary	Change of tendon related dysfunction by questionnaire at 16 weeks	Victorian Institute of Sport Assessment Questionnaire - Patellar Tendon	16 weeks