I am been having terrible hip and lower back pain and am still trying to figure out what the cause is. In my research on the net, I found some interseting info on the psoas muscle and how it can cause many back and hip problems. Just thought i would share this. Before I had this problem, I never even knew about this muscle. It is the "core" we all hear about.

People from all ages, occupations, and sport disciplines complain of low back pain. A tight Psoas often contributes to your back pain. Good News? You can avoid it… you can even fix it.

Where and What is My Psoas? The Psoas is one of the largest and thickest muscles in the body. It attaches to the vertebrae of your lower back, and the head of your femur (thigh bone).
The Psoas is primarily responsible for hip and thigh flexion and has a lot of influence over your lumbar posture and the way your hips are positioned.

Psoas Muscle. Image credit: Somatics on the Web
When you’re sitting for a prolonged period of time, your Psoas is in a shortened position. Leave it for long enough, and it will start to think this is normal. Your tissues want to move into that resting position. Leaving you tight & contracted.
Incorrect posture during standing and walking (which is often caused by a tight Psoas) will leave it even tighter and harder to loosen.

Why Does It Cause Back Pain? A tight Psoas is a killer for your back for various reasons.
  • If it is tight and in a contracted state, your Psoas will want to bring your lower back forward, moving you into an anterior tilt: lordotic posture.
  • The pressure exerted by the Psoas whilst in a contracted state can compress the joints and discs of the lumbar vertebrae. This pressure causes degeneration and will make them more susceptible to injury.
  • A shortened Psoas on one side will pull the spine or pelvis to that side, leading to many painful problems, including scoliosis.
  • A tight Psoas will stop your Glutes firing and activating normally. This is Reciprocal Inhibition: the Psoas and the Glutes are opposing muscles.
Lack of Glute activity plus horrific posture can lead to overcompensation in other muscles of the back, leaving them tight and overworked. Couple this with the referring pain from the trigger points in your Psoas and you will be hurting.

Tips to Avoid A Tight Psoas. There are several ways to stop your Psoas turning into a hazardous plank of wood. All of which are easy to implement and should be even if you don’t suffer from back pain yet. Here goes…
  • Postural Corrections. If we stay in a certain position all day, our tissues will want to move into that resting position, in this case, your Psoas. The best sitting posture is one that always changes.
  • Sit Back in Your Chair. This will stop you leaning forward as much, and thus your Psoas won’t be in as shortened position in comparison to when you sit on the edge of your seat.
  • Stop Hooking Your Feet under Your Chair. You put yourself in more hip flexion and therefore, more Psoas activation. Set your feet flat on the floor, or a raised platform if you are a shortie.
  • Stand Up When Performing Exercises. You sit all day at work and keep your Psoas shortened. Do the opposite in the gym. Instead of the bike, get on the treadmill. Sub in Overhead Press instead of Seated Press.
  • Stop Sleeping on Your Stomach. When you are on your stomach, your back goes into hyperextension. This is exacerbating what a tight Psoas already does to your back (anterior tilt). Change it up.
  • Move More. Not staying in a seated position all day will go a long way to stopping you developing a tight Psoas. Get up more frequently, stretch more often, change positions… just keep moving!

Tips To Loosen A Tight Psoas. If you do suffer from low back pain and you suspect a tight Psoas, relax (maybe your Psoas will follow the lead), read the next few tips, and get cracking.

1. Stretch. Add Psoas and Hip Flexor stretches after your workouts. Get out of your chair at work occasionally and do some stretches. Do some at night before you go to bed. You can do Mehdi’s or this one:


2. Release. The most effective way to loose your Psoas is through a therapist. But you can do it yourself using a ball slightly larger & softer than a tennis ball. This massage technique releases your Psoas through an active range of motion.
  • Lay on the ball, about 1-2 inches outside your belly button.
  • You’ll feel your Psoas respond as you lower yourself. It will hurt a little.
  • Arch your back; come up onto your elbows. This will result in a more forceful stretch and release on your Psoas.

3. Activate Your Glutes. Active glutes will help inhibit and relax your Psoas. Here are my favorites exercises you can integrate into your warm-up, or do in your main program to help fire up your glutes and loosen your Psoas.
  • . Stretch and glute exercise.
  • Single Leg Bridge with Knee lift. Lifted knee stretches opposite Psoas.


A tight Psoas will give many more problems than I have outlined here. It’s easy to prevent them getting tight and there is a lot you can do about it if it does.
Generally, during everyday life, at the workplace and even at the gym people are performing movements that promote Psoas tightness. Start taking some notice and prevent these troublemakers from giving you pain.