The psoas is a large, powerful muscle that runs from the lower back to the femur (thigh bone). Lunges and other psoas stretches can help relieve tension in the psoas muscle. Share on Pinterest Tony ...

What Is the Psoas Muscle? The psoas (pronounced so-ezz) muscles are two large muscles in your lower back. You have one on either side of your spine. They're the main muscular connection between your ...

Add Yahoo as a preferred source to see more of our stories on Google. The hip flexors, psoas included, get a lot of wear and tear in and out of the gym. “When we’re sitting, this muscle becomes placed ...