The Achilles tendon (AT) is the strongest tendon in the human body, playing a critical role in gait by transmitting forces from the triceps surae (gastrocnemius and soleus muscles) to enable plantarflexion. Despite its strength, the AT is highly susceptible to injury due to the repetitive high-load stresses it endures during locomotor activities such as walking and running. Rehabilitation following Achilles tendon rupture or surgical repair is often prolonged and complex. Traditional protocols based on joint immobilization can lead to persistent deficits in plantarflexor strength, proprioception, and tendon stiffness, primarily due to adverse changes in muscle-tendon morphology and function—particularly affecting the soleus muscle.