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SPORTS ANATOMY LESSON #7

HIP ABDUCTOR MUSCLES
 
The hip abductor muscles are a group of four muscles located in the buttocks region on both sides of the body.  Their names are: 1) Gluteus Maximus, 2) Gluteus Medius, 3) Gluteus Minimus, and 4) Tensor Fascia Lata.  These muscles are shown in Figure 1 below:

Abductor Muscles

Figure 1. The Hip Abductor Muscles.


INNERVATION (NERVE SUPPLY)

The nerve supply to the abductor muscles is as follows:  The Gluteus Maximus is supplied by the Inferior Gluteal Nerve and branches from the Sacral Plexus.  The Gluteus Medius, Gluteus Minimus, and Tensor Fascia Lata are supplied by the Superior Gluteal Nerve.  See Figure 2 below:

Abductor Nerves

Figure 2.  Nerves of the Abductor Muscles.
Superior Gluteal Nerve (L4, L5, and S1): Gluteus Medius, Gluteus Minimus, and Tensor Fascia Lata.
Inferior gluteal nerve (L5, S1, and S2):  Gluteus Maximus.

"LifeART (and/or) MediClip image copyright (2005) Lippincott Williams & Wilkins. All rights reserved."


Function

The abductors main function is to abduct or separate your legs away from the midline of the body.  This occurs during any athletic movement requiring you to move from side to side such as playing the infield in baseball, defense in basketball and football, and ice skating.

Abductors Starting Postiion
Starting Postion

Abductors Ending
Ending Position

Figure 3.  Legs abducted away from the midline.
Muscles involved:  L/R Gluteus Maximus, L/R Gluteus Medius, L/R Gluteus Minimus,
and L/R Tensor Fascia Lata.


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