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Monday, February 8, 2016

STOP Stretching Your Iliopsoas

It's all over the internet. You've read about it on numerous blogs. I've even talked about it. There's stretches. There's lacrosse ball rolling. There are standing desks.  It's all to resolve tight hip flexors (Illiopsoas). "The tightness is killing you!" You're doing everything you can ... But WHY is it still tight?

When we roll, stretch and use a standing desk,  are we REALLY solving the issue?  There has to be more to the story then hip flexors contractures from sitting.

Yes, sitting can contribute to tight hip flexors. However, instability of the core and back can also cause the hip flexor to be tight. The hip flexor originates from the lumbar spine. It is a massive muscle in the center of our body. When the core is unstable the hip flexor compensates by tightening to provide the stability needed. Our body wants to be stable. Could it be that our hip flexor doesn't get tight because of the position itself? Or does it tighten because the way we sit causes or back stabilizers to shut off so the hips stiffness to provide stability?


Core Stability vs Core Strength

Core stability is the ability for the small intersegmental muscles to stabilize the joints while moving. This is important for proper bone mechanics. Core strength is the ability of the large muscles groups to the body in a big range of motion. Stabilizers are the multifidus which are short muscles that attach a every 2-3 bone segments and the transverse abdominals (TrA) which is the deep layer of the abs. Strength muscles are erector spinae and rectus abdominals (6-pack).


Note how parts of the psoas originates
from each of the vertebra 
Note the attachment of multifidus spans
3 segments





















Performing crunches and back extensions will improve your core strength but not stability your core. Lack of balance between the stabilizers and strength muscles can cause shearing of the lumbar joints causing pain. This will also contribute to the tightness. Performing stability exercises will decrease low back pain and hip tightness.

Which Exercises?




The best exercises to improve stability are marches, bent knee fall out and various planks. The key is to keep the core neutral and tight during the exercises. There are many other stability exercises such as bird-dog and dead bugs. Choose 3-4 of them 3 times a week. Progress to standing functional exercises such as a variation on a chop. You can continue other core strengthening exercises but also include spine stability exercises.

Go ahead, stretch and roll out your hip flexors. It will help to manage your symptoms. But, if you find yourself constantly rolling and stretching your hip flexor, ask yourself, how is your core stability.  In order to resolve the tightness, you have to stabilize the spine by improving the endurance of the stability muscles.
* Pictures from www.studyblue.com

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