The Fibularis Longus Muscle (Peroneus Longus Muscle)

Fibularis Longus Muscle (Peroneus Longus Muscle)

Christine Wiese Anatomy, Lower Limb 1 Comment

Exploring The Fibularis Longus Muscle

The fibularis longus muscle (peroneus longus muscle) is the second muscle that we’ll cover that is part of the lateral compartment on the outside of the foreleg. Fibularis longus forms one half of the anatomical stirrup. The tibialis anterior forms the other half. The anatomical stirrup is created by the way in which the tendon from the fibularis longus muscle goes under the foot and then attaches to the same two bones as the tibialis anterior. The effect is a “stirrup” for your foot. These two muscles are critically important for our balance and the health and maintenance of the arch on the medial side of the foot.

What does the name of the fibularis longus muscle (peroneus longus muscle) mean?

The fibularis longus muscle is also known as the peroneus longus muscle.
Fibularis refers to one of the lower leg bones, the fibula.
Peroneus also means “relating to the outer leg” or fibula.
The word “longus” refers to this muscle being the longest of the fibularis or peroneal muscles.

Where does the fibularis longus muscle attach?

OriginFibularis Longus Attachments

The fibularis longus muscle originates on the head and proximal two-thirds of the fibula.

Insertion

From the origin, the long tendon of the fibularis longus comes down behind the lateral malleolus (lateral ankle bone), then dips under the foot to cut across and get to its insertion point. It inserts on the first, or medial, cuneiform and base of the first metatarsal.

What actions does the fibularis longus muscle do?

The fibularis longus muscle functions to do eversion of the ankle. Additionally it assists in plantarflexion of the ankle because its tendon is behind the lateral malleolus.

Poses where the fibularis longus muscle  contracts:

The Fibularis Longus Muscle (Peroneus Longus Muscle) in Utthita Hasta Padangusthasana

The fibularis longus muscle helps to stabilize us in balancing postures. Here we are in utthita hasta padangustasana.

Poses where the fibularis longus muscle is lengthened:

The Fibularis Longus Muscle (Peroneus Longus Muscle) in Warrior 2 Pose

It’s not generally recommended that you stretch your fibularis longus muscles, but they are lengthened by virtue of their position. The back foot in warrior 2 with the heel down would do just that.

Trigger Points

Trigger Points in the Fibularis Longus Muscle (Peroneus Longus Muscle)

Join thousands of yogis when you sign up to our monthly newsletter

  • This field is for validation purposes and should be left unchanged.
Join thousands of yogis when you sign up to our monthly newsletter
  • This field is for validation purposes and should be left unchanged.

Check out our Online Courses and Workshops

c-yoga-anatomy-course-main
  • Enhance your practice
  • Fine tune your teaching skills
  • Go deeper into anatomy and yoga

Related Posts

The Soleus Muscles

The Soleus Muscles

This month David highlights the soleus muscles. Learn where these lower leg muscles are found, what they do, and what yoga postures use them.

Read More »

Popular Posts

About David Keil

This website is simply about delivering yoga anatomy to the yoga community in a simple and understandable way. It has always been about you, the reader, understanding the complexity and diversity of our own humanness as well as our anatomy.

Follow us on:

Comments 1

Leave a Reply