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Achilles Tendinopathy in Runners: The Hidden Role of the Nervous System in Persistent Plantarflexor Weakness
Conference presentation

Achilles Tendinopathy in Runners: The Hidden Role of the Nervous System in Persistent Plantarflexor Weakness

Gabriel Fernandes
QUT Spring Symposium 2025 (Brisbane, Australia, 06/09/2025)
06/09/2025

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Abstract

Persistent plantarflexor weakness is a common issue in runners with Achilles tendinopathy (AT). For years, soleus was considered the primary contributor, guiding both assessment and treatment. However, new research challenges this assumption. This presentation will show that runners with AT have a selective deficit in the lateral gastrocnemius, evidenced by reduced activation and a lower contribution to total triceps surae force. I will delve into the neural mechanisms driving this selective weakness and discuss how it may alter tendon load distribution, potentially explaining why symptoms persist. To address this, I will propose a new intervention using targeted recruitment strategies to specifically strengthen and increase the activation of the lateral gastrocnemius. This novel approach may improve treatment effectiveness by correcting a key deficit that current rehabilitation methods often fail.

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