After a person wears high heels (more than 4 cm), the anterior tilt of the pelvis is enhanced because of the gravity line through the back of the pelvis, so that the waist to support the weight and increase the burden, and then after the extension is enhanced, long-term persistence, will be due to excessive contraction of the lumbar back muscles and lumbago. For every 1 cm increase in heel height, the lumbar back extension and contraction of the lumbar back muscles will increase exponentially, and the greater the chance of low back pain. It is recommended to choose a heel height of about 3 cm is more appropriate.