The erector spinae ( irr-EK-tər SPY-nee) or spinal erectors is a set of muscles that straighten and rotate the back. The spinal erectors work together with the glutes (gluteus maximus, gluteus medius and gluteus minimus) to maintain stable posture standing or sitting.
The erector spinae ( irr-EK-tər SPY-nee) or spinal erectors is a set of muscles that straighten and rotate the back. The spinal erectors work together with the glutes (gluteus maximus, gluteus medius and gluteus minimus) to maintain stable posture standing or sitting.
Source: Wikipedia "Erector spinae muscles" · CC BY-SA 4.0
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