Peroneal Tendinopathy

The peroneal tendons run along the outer side of the ankle and foot and help stabilize the ankle during walking, running, and changes in direction. They play an important role in controlling foot position and absorbing load, particularly during higher-impact or side-to-side movements.

Peroneal tendinopathy occurs when these tendons are exposed to repeated or excessive load beyond their current capacity. Despite sometimes being described as an inflammatory condition, symptoms are more commonly related to reduced tendon load tolerance, strength deficits, and altered lower-limb mechanics over time. Ongoing strain may lead to persistent pain, weakness, or reduced confidence in ankle stability.

• Pain or tenderness along the outer ankle or foot

• Swelling or thickening around the peroneal tendons

• Pain with walking, running, or uneven ground

• Discomfort during side-to-side or cutting movements

• A feeling of ankle weakness or instability

• Symptoms that worsen with increased activity or load

• Stiffness or soreness after periods of rest

• Sudden increases in walking, running, or sport activity

• Previous ankle sprain or unresolved ankle instability

• Reduced strength of the ankle, foot, or lower limb muscles

• Impaired balance or neuromuscular control

• Altered foot mechanics or excessive outward foot loading

• Training on uneven or sloped surfaces

• Inadequate recovery between loading sessions

Physiotherapy for peroneal tendinopathy focuses on restoring the tendons’ ability to tolerate load while improving strength, control, and ankle stability. Because symptoms are often related to reduced tissue capacity rather than inflammation alone, treatment emphasizes progressive strengthening and gradual return to activity rather than prolonged rest.

Physiotherapy management may include:

• Progressive strengthening of the peroneal muscles and surrounding ankle stabilizers

• Balance, proprioception, and neuromuscular control training

• Gradual loading to improve tolerance for walking, running, and sport activity

• Mobility work for the ankle and foot when restrictions are present

• Movement retraining to reduce strain on the outer ankle

• Activity and load management to support recovery while maintaining movement

• Taping, bracing, or footwear guidance when appropriate

Recovery timelines vary depending on symptom duration, activity demands, and contributing factors. Many individuals experience meaningful improvement over several weeks to months with a structured rehabilitation program. Early, progressive treatment can help reduce persistent symptoms and support a safe return to full activity.