Piriformis Lateral Hip Rotation

Piriformis Lateral Hip Rotation (External Hip Rotation)

Return to Muscles Chart Lower Extremity

ACTION REVIEW FOR THE PIRIFORMIS

Piriformis Lateral Hip Rotation is its action described as:

Prime Mover of Lateral Rotation (External Rotation) of the Femur at the hip Joint

Synergists: assist in performing the action of Lateral (External) hip Rotation

  • Piriformis
  • Gemellus Superior
  • Obturator Internus
  • Gemellus Inferior
  • Obturator Externus
  • Quadratus Femoris
  • Gluteus Maximus
  • Sartorius
  • Posterior fibers of Gluteus Medius
  • Biceps Femoris (long head)
  • Adductor Magnus (posterior head)

Fixators or Stabilizers:  These muscles maintain dynamic control to allow for lateral or external rotation of the hip

  • Rectus Abdominus
  • Internal and External Obliques
  • Quadratus Lumborum
  • Erector Spinae
  • Deep Rotators of the Hip
  • Gulteus Medius
  • Gulteus Minimus

Antagonist: Muscles that perform the opposite action to the agonist in this case Piriformis & Lateral (External) Rotation of the Hip

  • Gluteus Medius (anterior fibers)
  • Gluteus Minimus
  • Tensor Fascia Latae
  • Semimembranosus
  • Semitendinosus
  • Anterior Adductors

See the Deep Lateral Rotators in Motion on ExRx.net

Thank You for Joining us at Get Massage Smart.  A Mission to Spread the Benefits of Touch Therapy and Smart Massage Education.  Get Massage Smart offers the above anatomical information for its  educational value and dose not validate its accuracy. Please refer to the following texts and resources. 

References & Resources for the muscle anatomy information are:

Sieg and Adams: "Illustrated Essentials of Musculoskeletal Anatomy", 4th edition, 2002, Megabooks Inc,

Muscolino J E: The Muscular System Manual, The Skeletal Muscles of the Human Body, ed 3, 2009,
Elsevier/Mosby. 

University of Michigan Medical School: Muscle Tables & Illustrations

ExRx.net

http://brentbrookbush.com/kinesiology-of-the-hip/

Home>Muscle Chart Lower Extremity>Muscle Chart Upper Extremity>Video Series Muscles of the Lower Extremity>Video Series Muscles of the Upper Extremity>Learn the Bones>Learn the Muscles>Articulations and Joints>Top of Page


Copyright © 2009-2018 All Rights Reserved GETMASSAGESMART.COM