The schemas are a set of 'types', each associated with a set of properties. The types are arranged in a hierarchy.he schemas are a set of 'types', each associated with a set of properties. The types are arranged in a hierarchy.
Inadequate stretching and warming up prior to exercise, or advancing your exercise program too quickly, or beginning a new exercise program, have all been known to cause symptoms. In some people, just vigorous walking or exercising on uneven ground is enough to exacerbate a flare-up of sciatica nerve pain.
If your sciatic nerve becomes inflamed, the condition is called sciatica (pronounced si-ad-i-ka). The pain can be intense! It often follows the path of your nerve down the back of your legs and thighs, ankle, foot and toes, but it can also radiate to your back.