Functional Rehab Academy

Peroneus tertius (Fibularis)

Muscle function: Ankle dorsi flexion (talocrural joint) and eversion (subtalar joint). Control of Fibula.


Muscle origin: Medial surface (distal 1/3) of fibula, interosseous membrane and anterior intermuscular septum

Muscle insertion: Dorsal surface of the base of 5. metatarsal bone

Nerve innervation: L5-S1 (Lovett reactor C1)

Organ relationship: Lung, bladder – T2-6, T8-11 and Vagus

  • Lung
    • Sympathetic: T8-11
    • Parasympathetic: Vagus
  • Bladder
    • Sympathetic: T2-6
    • Parasympathetic: Vagus

Primary inhibatory muscles: Tensor fascia latae, Biceps femoris, Tibialis anterior

Client is supine. The knee is bend approx 90 deg. The foot is placed flat in the the ground, in abduction and eversion. Fiksate with one hand around the heel and apply pressure along lateral side of the 5. metatars towards adduction with the opposite hand.

Functional anatomy for

Peroneus tertius (Fibularis)

Related joints: Tibiafibular, Talocrural, Talonavicular

Myofascial lines: Lateral and Spiral line


Release exercises

Corrective strength exercises

Functional Rehab Academy

Manual and practical therapy strategies that will help you find the root cause(s) and achieve faster and better results with your clients.

Functional Rehab Academy is a part of:
Move2Peak Academy ApS, Denmark