Comparison of Alfredson and Silbernagel Protocol in Competitive Athletes With Achilles Tendinopathy
Unknown statusNot applicableNCT05659134
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This study has no listed site in Canada in this snapshot. It is included as part of the worldwide chronic pain corpus.
Brief summary (from the registry)
A 6-week randomized clinical trial (RCT) with a 46-week follow-up compared the effect of Alfredson and Silbernagel eccentric programs for the treatment of AT. The primary outcome was a change in the Victorian Institute of Sport Assessment - Achilles (VISA-A) scale from baseline to 12 months. The study was approved by the Ethics Committee of the Faculty of Physical Education and Sport, Charles University (Project number: 254/2021). All participants provided written informed consent before participation.
Study details
- Official title
- Comparison of Alfredson Eccentric and Silbernagel Concentric-eccentric Therapeutical Protocol in Competitive Athletes With Chronic Achilles Tendinopathy
- Conditions
- Achilles Tendinopathy
- Tendon Injuries
- Tendon Thickening
- Pain, Chronic
- Interventions
- Other: Alfredson protocol
- Other: Silbernagel protocol
- Sponsor
- Charles University, Czech Republic
- Start date
- 2022-12-02
- Primary completion
- 2024-12-02
- Sex
- All
- Age range
- from 18 Years to 40 Years
- Results posted
- No results posted in this snapshot
- Countries
- Czechia
- Total sites listed
- 1
Eligibility criteria
Show eligibility criteria (verbatim from the registry)
Inclusion criteria: * Athletes performing track and field, tennis or football at the competitive level * Age 18 to 40 years * Unilateral Achilles tendinopathy * Pain lasting more than 2 months * Diagnosis of Achilles tendinopathy established by pain on function at the Achilles region and ultrasound assessment (tendon thickening, swollen tendon) by one researcher * Participants trained at least 3 times per week before the onset of Achilles tendinopathy * Less than 3 months without training and less than 6 months from the last competition/match * Wish to return to original sport level * Willing to stop with other treatments 2 weeks before the start of the clinical trial Exclusion criteria: * Achilles tendon rupture in past * Corticosteroid injection in Achilles tendon region in last 6 months * Having other lower limb musculoskeletal injuries or surgery in the last 6 months (e.g., muscle rupture, bone fracture) * Having a neurological, systemic or autoimmune disease (e.g., neuropathy, type 1 diabetes, rheumatoid arthritis)
Source: ClinicalTrials.gov (US National Library of Medicine), snapshot October 2026. Check the registry for current recruiting status. Record: https://clinicaltrials.gov/study/NCT05659134