Exercise parameters to consider for Achilles tendinopathy: a modified Delphi study with international experts

Abstract
To assess the level of agreement among experts on the heel raise exercise parameters that influence midportion and insertional Achilles tendinopathy (AT) rehabilitation outcomes. An international expert panel in AT rehabilitation was invited to complete a three-round Delphi survey. In the first two rounds, experts were asked to review a pregenerated list of exercise parameters (based on the heel raise exercise) and rate their perceived influence on rehabilitation outcome, using a 5-point Likert scale. For each parameter, consensus criteria for major influence on rehabilitation were (a) median≥4, (b) ≥75% of scoring 4 or 5 and (c) IQR≤1. The third round aimed to rank the exercise parameters according to importance (from most to least important) during rehabilitation. 17 experts participated in the entire Delphi process. A total of 16 exercise parameters were assessed, of which 4 (intensity of contraction, total time under tension, number of repetitions and sets, type of contraction) reached consensus as having a major influence on rehabilitation for midportion AT and 3 reached consensus for insertional AT (range of ankle dorsiflexion during the exercise, intensity of contraction, number of repetitions and sets). The rankings of parameters that reached consensus showed that contraction intensity was perceived as the most important variable for midportion AT rehabilitation, while range of ankle dorsiflexion was deemed the most important variable for insertional AT rehabilitation. This study identified key exercise parameters for mid-portion and insertional AT rehabilitation based on expert opinion. This information should assist practitioners in optimising their approach to deliver more effective, patient-specific exercises for AT rehabilitation.
Description
This article was originally published in British Journal of Sports Medicine. The version of record is available at: https://doi.org/10.1136/bjsports-2025-110183 © Author(s) (or their employer(s)) 2025. This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
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Citation
Demangeot Y, O’Neill S, Degache F, et alExercise parameters to consider for Achilles tendinopathy: a modified Delphi study with international expertsBritish Journal of Sports Medicine Published Online First: 28 August 2025. doi: 10.1136/bjsports-2025-110183