Back pain is caused when there is a breakdown in the circuitry that controls the spine. If you lose control of your spine you are leaving yourself open to injury. Just like when you lose control of your blood pressure and it gets too high you are at a higher risk of cardiac problems. A well controlled spine means that there is good quality movement in all planes of motion and that the deep stabilising system is working well.
Activation of your deep stabilising system is essential for creating support to protect your spine and it's surrounding structures. It is important to have the correct amount of activation whilst at the same time allowing your breath to exist. It is very common for people to forget to breathe when they are concentrating so hard on tightening their core. This is important because your muscles need oxygen and if you fail to breath you are depriving your body of this important fuel.
Correct deep stabilisation forms a cylinder. The bottom of the cylinder is your pelvic floor and the diaphragm creates the lid. The front is created by your transversus abdominis and the back from your multifidus muscle. Altogether this cylinder creates an intra-abdominal pressure that protects the spine. Getting this cylinder to work well is the key to eliminating back pain.