Modern humans tend to love very lopsided lives when it comes to sports, daily habits, how we sit for work and how we hold babies, purses, backpacks etc.
Many people are walking around with a pelvic or hip instability issue without even knowing it. This is because the human body is amazing at compensating. It will compensate and compensate, sometimes for years without any pain at all…until one day it can’t take any more, and that’s when we get a pain signal.
The list of possible injuries or pain patterns that can happen due to a hip instability pattern are so numerous we’d be here all day if I went into them all, but the big surprise is plantar fasciitis.
If you’ve tried all the typical routes or methods of eliminating plantar fasciitis and your pain persists, it could be due to an underlying hip or pelvic instability issue. (Click here to learn about the most common causes of plantar fasciitis).
The short story on this complex issue:
Due to one or more imbalances in the fascia of the legs, your pelvis can experience a tilt, shift or rotation (or some combination thereof). This means it could be rotated forward on one or both sides, tilted to the left or right or otherwise shifted out of alignment.
When this happens, it is my belief that your brain detects potential danger to the central nervous system and spine (which requires a neutral pelvis to be at optimal health), and recruits one or more muscles of the low back or hip to contract neurologically to bring you back into balance.
Often, it’s the gluteus medius that is recruited this way and when it is – that muscle is no longer able to be recruited for its normal duties.
What does the gluteus medius do?
Gluteus medius and minimus abduct the thigh when the leg is straight and during gait (walking or running) these two muscles function to support the body on one leg to prevent the pelvis from dropping to the opposite side.
With the hip flexed, gluteus medius and minimus internally rotate the thigh. With the hip extended, they externally rotate the thigh, or more accurately they act to prevent internal rotation. Without this action the knee migrates inward, creating stress on the structures of the hip, knee and foot.
As you can tell, gluteus medius (and minimus) are critical for hip stability in ALL kinds of everyday actions. If one or both of these muscles is no longer able to do its job, it has to be done by other muscles.