External & Internal Obliques

External & Internal Obliques


Do you know what muscles give your abs the “V” look everyone wants?



Most people don’t realize that we have 2 sets of oblique muscles. The outermost layer that we can see is the external oblique & the layer underneath that we can’t see is the internal oblique. They are stacked on top of each other but their muscle fibers run in opposite directions. Their muscle fiber orientation is integral in determining the action of these muscles:

  • External oblique (EO) fibers run diagonally downwards & towards to middle of our body. Imagine putting your hands in your pockets. Your fingers mimic the fibers.
  • Internal oblique (IO) fibers run diagonally downwards & towards outside of our body. Imagine putting your hands in the pocket of someone next to you.
Image result for internal external obliques

Check out how we can use this information to train these muscles optimally for better gains!


Resources:

  • Neumann, Donald A. Kinesiology Of the Musculoskeletal System : Foundations for Physical Rehabilitation. 2016.

Featured Image By: Proko

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