A friend of mine reached out and asked me for yoga poses to help stretch his hip flexors. He experiences low back pain. He said he and his trainer narrowed it down to his hip flexors.
I preach about the psoas all the time in my classes because it shortens as part of the stress response. When we are stressed, we are activating the sympathetic nervous system, which can cause of whole freaking slew of issues, one of which is low back pain.
Because of where psoas originates in the lower spine and attaches at the top of the thigh bone, the shortening of the muscle can pull the low back forward, causing a feeling of compression or pain in the low back. I see this a lot in my students.
I also see what happens to the human body when we practice conscious relaxation to activate the parasympathetic nervous system. The eyes soften, the muscles of the face relax, and you feel generally more calm and centered.
I made you all this 17-minute SNS (Short n Sweet) practice so you can see what the psoas feels like. The practice will both strengthen and lengthen the psoas and hopefully provide some relief for the low back.