Frequently, I see women in my office whose initial appointment starts something like this: “Well, I felt fine and then, after my last pregnancy, everything changed….” The bottom line is that pregnancy does tend to have a lot of impacts on the body – biochemically, structurally, and neurologically. And sometimes the body makes adaptations and changes during the process that don’t properly readjust and rebalance after the baby arrives. I see evidence of that every day in my practice. In addition to biochemical and endocrine system “shifts,” something that’s extremely common post-partum is chronic back pain. Just yesterday I saw yet another case of this in my office. Let me explain why this happens and what you can do about it:
Pregnancy itself causes structural changes to the whole body, however, onearea that is greatly affected is the pelvis. Here’s why: When muscles are continually stretching to their capacity, muscle spindle cells, which are the neurological feedback loops within each muscle, stimulate the muscles to contract. So, for example, as abdominal muscles are being stretched to accommodate the growing baby, the response is that abdominal muscles will be stimulated to contract against this stretch. I suppose this is one reason why pregnant bellies generally feel tight, like a basketball, as opposed to “wobbly.” The neurological relationship between anterior and posterior paired muscles — everywhere in the body — is that when anterior muscles are in contraction, the posterior related muscles turn off, so to speak. So, for example, when you flex your bicep, your brain sends a signal that effectively turns off the tricep to allow for the bicep to contract. So, back to the pregnant belly…. When pregnancy causes the anterior abdominals to stretch to capacity for essentially 9 months, this causes them to flex continually. The result of flexing continually is that the lower back muscles (which relate to the anterior abs) effectively turn off. The result of this is that the pelvis loses its stability and structural integrity somewhat, during pregnancy. This is appropriate, in that it allows for a growing baby to pass through the birth canal, but the side effect is pelvic instability, loss of core muscle stability in the lower back, and back pain!
What can you do about it? Well, to end lower back pain after pregnancy, it’s important to restore core muscle stability and structural integrity to the pelvis. The first step is to restore function of the posterior lower back muscles, which are most likely, still getting the signal from the brain that they need to be shut down to accommodate the abdominal flexors. So, a chiropractor trained in functional neurology techniques has a few low-force techniques to clear out the subtle effects of that neurological pattern and reset the lower back muscles.
Once the neurological patterns associated with pregnancy are removed, the muscles will function in their proper relationships again. Then, it’s a matter of rehabilitating core spinal muscles that have atrophied a bit.
During this rehabilitation process, it can also be helpful to receive acupuncture techniques or high power laser therapy, both of which can
increase energy and bloodflow to the pelvis and lower back. High power laser therapy is a cutting edge therapy for which there is research
documenting cellular regrowth, decreased inflammation, and other beneficial effects.
In addition, it can be beneficial in cases of low back pain to determine whether the patient is able to properly absorb vitamin E. Chronic low
back pain is frequently linked to an inability to properly metabolize vitamin E. So, a urine or blood test, in addition to the use of applied
kinesiology, may determine whether this is an issue for a patient.
So, that’s a basic discussion of why even a normal pregnancy will often cause low back pain.
Now, with a traumatic birth experience or C-section, there could be low back problems for other reasons as well — nerve damage, disc herniations, heavy scar tissue, can all contribute to pain throughout the body. I’ll discuss that in a future blog. Until then, be well!