What I have discovered in practice is that there are usually only one or two main groups of muscles, setting up the imbalances that cause the joint to move or the pressure to build up in a muscle making the joint stiff or tight and painful to use. If the muscles that set up the imbalances (usually the deeper structural muscles) are worked on correctly, the pressure that causes the twist, tilt or tightness is released, along with the pain. When a back develops problems it is not normally something that has just happened but rather…