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IRCT20250525065886N1 IRCT 2025-05-26 Riphah International University, Gulberg Green Campus, Gulberg-III, Lahore, Punjab, Pakistan Alfredson and Silbernagel exercises in athletes with Achilles tendinopathy Effects of Alfredson and Silbernagel exercise therapy on pain, range of motion, and muscle performance among athletes with Achilles tendinopathy. 2024-07-07 anticipated 30 Complete https://irct.ir/trial/83801 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Participants will be randomly assigned to two groups using the sealed envelope method to ensure allocation concealment and reduce bias. A set of numbered envelopes will be prepared, each containing a predetermined treatment assignment. Upon obtaining patient consent, Group A will receive Alfredson exercises, while Group B will follow the Silbernagel exercise protocol, Blinding description: Blinding in this study means that participants will not be told which treatment group they are in or what treatment they will get. This will be done using the sealed envelope method so it will be a single-blind study. N/A Achilles Tendinopathy. Intervention 1: Intervention group: Group A – Alfredson Protocol. After basic stretching and mobility exercises, participants performed a 12-week eccentric training program, twice daily. It includes 4 exercises targeting Achilles tendinopathy: Weeks 1–2: Straight-knee eccentric heel drops (3×15, twice daily)Weeks 2–6: Bent-knee eccentric heel drops (3×15, twice daily)Weeks 6–8: Isometric holds during heel raises (30–45 sec hold, twice daily)Weeks 8–12: Calf raises (3×15–20, twice daily) Progression is achieved by adding 5 kg load when tolerated. Intervention 2: Intervention group: Group B – Silbernagel Protocol. After the same basic intervention, participants followed a 12-week combined loading program, once daily, focusing on concentric, eccentric, and plyometric exercises: Weeks 1–2: Isometric heel raises (45 sec hold × 5 reps) Weeks 2–6: Concentric + eccentric heel raises (3×15) Weeks 6–12: Plyometric hopping exercises (3×10) and sport-specific drills. Progression is also achieved by adding 5 kg load as tolerated. Yes - There is a plan to make this available What will be shared: yet to be decided, as the study will be complete in next 3 months When: yet to be decided, as the study will be complete in next 3 months To whom: To all the researchers community and clinicians Conditions: For research purposes and evidence-based practice in clinics Where to obtain: Google Scholar and PubMed How to obtain: Nil Comments:
public Laiba Rizwan
25 Raza Saeed Road, Bhabra Block M Gulberg III, Lahore Punjab
Lahore Pakistan 54660 +92 343 7251576 l.rizwann2@gmail.com Riphah International University, Gulberg Green Campus, Gulberg-III, Lahore, Punjab, Pakistan scientific Laiba Rizwan
25 Raza Saeed Road, Bhabra Block M Gulberg III, Lahore Punjab
Lahore Pakistan 54660 +92 343 7251576 l.rizwann2@gmail.com Riphah International University, Gulberg Green Campus, Gulberg-III, Lahore, Punjab, Pakistan Pakistan Both male and female athletes Age between 18 to 30 years Duration of playing at least 1 to 2 years Athletes with chronic Achilles tendinopathy for more than 3 months Participating in sports involving Achilles tendon loading (i.e., sports characterized by walking, running, and/or jumping) 18 years 30 years Both Corticosteroid injections in the region of the Achilles tendon in the previous 12 months Any neurological disease History of fracture Players having any co-morbidities Athletes have systemic diseases that can hinder training Any surgery in the lower limb region in the past two years Treatment - Other Treatment - Other Intervention group: Group A – Alfredson Protocol. After basic stretching and mobility exercises, participants performed a 12-week eccentric training program, twice daily. It includes 4 exercises targeting Achilles tendinopathy: Weeks 1–2: Straight-knee eccentric heel drops (3×15, twice daily)Weeks 2–6: Bent-knee eccentric heel drops (3×15, twice daily)Weeks 6–8: Isometric holds during heel raises (30–45 sec hold, twice daily)Weeks 8–12: Calf raises (3×15–20, twice daily) Progression is achieved by adding 5 kg load when tolerated. Intervention group: Group B – Silbernagel Protocol. After the same basic intervention, participants followed a 12-week combined loading program, once daily, focusing on concentric, eccentric, and plyometric exercises: Weeks 1–2: Isometric heel raises (45 sec hold × 5 reps) Weeks 2–6: Concentric + eccentric heel raises (3×15) Weeks 6–12: Plyometric hopping exercises (3×10) and sport-specific drills. Progression is also achieved by adding 5 kg load as tolerated. Pain. Range of motion and Muscle performance. Timepoint: Baseline and after 12 weeks. Method of measurement: NPRS, Goniometry, Calf Raise Test, Hop Test, VISA-A Questionnaire. Riphah International University, Gulberg Green Campus, Gulberg-III, Lahore, Punjab, Pakistan Approved 2024-07-30 Ethics Committee of Riphah College of Rehabilitation and Allied Health Sciences 26-M Gulberg-3 Campus Lahore Lahore Punjab Pakistan