Internal Obliques Muscle
Even though many workout and exercises declare to get you the flat abs and stomach that you’ve always wanted, many of them are ineffective and insufficient. Here we will be discussing one of your major core abdominal muscles the Internal Obliques.
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The abdominal internal oblique muscle are a pair of muscles right below the external obliques and originates from anterior of the iliac crest of the pelvis and thoracolumbar fascia. The internal oblique inserts on your 9th through 12th rib, linea alba, and contralateral rectus sheaths.
During more isolated abdominal core workouts and exercises, your internal oblique’s isolated function is to concentrically accelerate spinal flexion, lateral flexion, and ipsilateral rotation. During more integrated movements your obliques function is to eccentrically decelerate spinal extension, rotation, and lateral flexion. Your internal obliques also isometrically stabilize the lumbo-pelvic hip complex.
The internal obliques are also considered “same side” rotators. This means if you rotate or twist your torso to the right, then your right internal oblique will be helping to assist that twist or rotation, and likewise if you twist or rotate to the left. The internal obliques are considered strong trunk rotators because of their muscle fiber make up. These muscle fibers are created or run horizontally instead of vertically. Thus they are made to help with rotational movements.
Remember, some of the more common movements the internal obliques are involved in include:
- Flexing the spinal column
- Sideways bending
- Trunk rotatin
- Compressing the abdomen
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