Happy Piriformis Day!
In 2011 Katy Bowman declared September 25 to be Piriformis Day! At the time I though it was entertaining, and I put it in my calendar on an annual repeat. Since then, each year as it comes up, I'm reminded of the importance of this little muscle, one of our external rotators in the hip. The piriformis is a deep muscle, underneath your gluteus medius, and your gluteus maximus. So why all the fuss about the piriformis?
Underneath the piriformis is the sciatic nerve. In fact, in some people, the nerve actually runs through the muscle and not just behind it. When the piriformis is tight, it can press on the sciatic nerve causing pain down the leg, mimicking sciatica. True sciatic is compression of the sciatic nerve in the spine, which can be difficult to resolve. Piriformis syndrome, however, is easier to resolve. **The only way to know if you have piriformis syndrome or true sciatic is to get a scan, so see your doctor, and don't just get someone on Facebonk to diagnose you.
If you have piriformis syndrom, the first thing we need to do is to relax the piriformis. To do this, we try to stretch it. Because of it's location (under all those layers of muscle) and it's position (attached to the outside of your thigh and to the sacrum, horizontally along either of your buttocks), it's not an easy muscle to stretch. One way people like to stretch it is called the Number 4 stretch (see below), but lots of people are doing this stretch wrong. When you allow your back to come to the floor and your pelvis to tilt, the stretch moves away from the piriformis and more into the back. Does this stretch cause harm? Not really. Does it feel good? For many people, YES! Should I do it? Well, depends on what you are hoping to accomplish. If you want to stretch the piriformis, try keeping the pelvis in a neutral position (this will have your low back off the floor most likely). I know it's hard to see because of the shadows, but you can see how my bum is off the floor on the left, and how it's on the floor on the right. When you do this, you probably won't be able to reach your leg with your arms anymore, but that's no problem. Grab a yoga strap, or a belt, or scarf, or a tea towel — whatever you have handy — and use that to pull your leg towards you. The other leg (that is rotated outward) is the leg where you are going to feel the stretch. PROTIP: if your knee on the rotated leg feels like it is being torqued in this stretch, pull those toes towards your knee to help stabilize it. Another PROTIP: you can place the heel of the leg you might have a strap around on the wall instead of letting it float in the air. Some people prefer to do this at a wall, or even sitting in a chair (like Katy Bowman does in her original piriformis post).
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