What is SI joint pain during pregnancy?
SI joint is short for Sacroilliac joint. This joint is located right at the bottom of the spine. It is comprised of three structures; the two ilium and the sacrum in between them. The function of this joint is to transfer force between your upper and lower body. This means that the SI joints are the joints that bears the most weight between the body as it is the main pivot between the upper and lower body.
Due to the change in biomechanics during pregnancy and extra increase in weight, more pressure will be placed on the two SI joints. As a result, it leads too improper weight bearing and movement of the joint.
Why does structural chiropractic work so well for SI joint pain?
Structural chiropractic looks to correct the cause of SI joint pain as it makes the spine and body more biomechanically functional. Meaning that it corrects the alignment of the SI joints leading to the correction of joint movement, muscles strength, a reduction in muscle tightness and tension and a reduction in the destruction of joints, bones, discs and nerves. This can help your body distribute weight properly during pregnancy leading to less wear and tear.
So how does this all happen?
When your joints (any joint) are misaligned, they cannot move correctly. When a joint does not move correctly, the stabilising muscles that support that joint become lazy and weak and the nerve connection to those muscles diminish as it's not getting used much.
It's use it or lose it for the body, brain and nerve connections and Just like having a cast on your arm or leg, without moving the joints for just 1-2 months you will see a huge reduction of muscle tone and strength and nerve connectivity.
More specific to the spine, without proper movement of the joints and strength of the muscles and ligaments of the spine, the spinal curves lose their most functional shape and instead of acting like springs to distribute everyday forces, all the forces go onto the bones and discs of the spine and cause degeneration, damage/injury and other dysfunctions to occur.
The deep stabilising muscles and their strength and activity are important as when they are not supporting a joint properly a whole host of problems can arise.
These muscles keep the joints in their proper position… so when they are weak:
- The joint is not getting any support.
- It's not in it's optimal position.
- Keeps locking up and lacks proper movement.
- The muscles keep getting weaker.
- The cycle keeps getting worse over time.
- Creates damage inside the bones, joints, discs and nerves
This weakness and instability within the deep stabilising muscles also creates tightness and stiffness in and around the bigger muscles around the body such as the neck (causing tension headaches), chest, shoulders, lower back, buttock and even arms and legs, creating a whole chain of improper movement and stress through the body.
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