Muscle Breakdown: Obturator Externus
Table of Contents
What Is the Obturator Externus
The Obturator Externus is a small muscle deep in the Gluteal Region that helps to move the thigh and contributes to the stability of the hip. Although small, this muscle is important to the overall health of the hip and thigh. Keep reading to learn more about the Obturator Externus!
Obturator Externus Function
The Obturator Externus primarily functions to rotate and adduct the femur. It assists in the movement of the thigh. The Obturator Externus also helps to stabilize the head of the Femur and reinforce the hip joint.
Obturator Externus Action
The Obturator Externus helps us in many everyday activities such as walking and running and sports that involve external rotation of the legs.
Obturator Externus Innervation
The Obturator Externus is innervated by the posterior branch of the Obturator Nerve.
Obturator Externus Pain
Obturator Externus Pain is treated with different modalities such as electrotherapy, massage and stretching. If you are experiencing pain in this region, it is best to seek the advice of a Physical Therapist who can identify the correct source of your pain and provide an appropriate treatment plan.
Obturator Externus Origin
The Obturator Externus originates from the exterior surface of the Obturator Membrane as well as its bony margins.
Obturator Externus Insertion
The Obturator Externus inserts into the Greater Trochanter of the Femur.
Obturator Externus Groove
The Obturator Externus Groove is located on the neck of the Femur. This is where the Obturator Externus can insert into.
Obturator Externus Stretch
You can stretch the Obturator Externus by performing stretches that engage the adductors and external rotators of the hips. An example of an Obturator Externus stretch involves sitting in a chair and placing your right foot by your left knee. Use your hands to pull the right knee towards the left shoulder. Hold this position for at least 30 seconds and then repeat on the other side.
Obturator Externus Injury
It is fairly uncommon to injury the Obturator Externus. In fact, a tear to the Obturator Externus is very unlikely. Research has shown that injury to the Obturator Externus is under-diagnosed, however, individuals appear to recover quickly if there is an injury.
Obturator Externus Strain
It is unlikely to strain or injury the Obturator Externus. In fact, if there is strain or injury to the muscle, other muscles will compensate and any discomfort is very minor according to research.
When The Obturator Externus Contracts The Thigh Is
When the Obturator Externus contracts or flexes the thigh, it will function to externally rotate the hip.
Obturator Externus Bursitis
Obturator Externus Bursitis can occur from overuse of the joint. Bursitis refers to a small fluid-filled sac that is located in-between bones, muscles and ligaments that can become inflamed from frequent use. Obturator Externus Bursitis often will subside with rest and ice, but serious cases can require surgical removal. Your doctor will be able to diagnose Obturator Externus Bursitis using an MRI or X-ray.
Obturator Externus Pain Symptoms
Symptoms of pain in the Obturator Externus can manifest itself as burning in the hip, a feeling of tightness in the hips, and even shooting pain down into the groin. With this being said, if you are experiencing these symptoms, you might have injured your Obturator Internus instead! Most people who are experiencing these types of symptoms such as pain in the hip when sitting actually have an injury to the Obturator Internus, and not the Obturator Externus.
Obturator Externus Nerve
The Obturator Externus is innervated by the Obturator Nerve.
