From Wikipedia, the free encyclopedia. Namespaces Article Talk. Categories: High Heeled Footwear. In a study from the Sahmyook University in Korea, researchers wanted to investigate the effects of high heels on the activation of muscles in the cervical and lumbar portions of the spine which refers to heels man high neck heels man high lower back. With sewing machines, yields increased as machines could quickly and cheaply "position[n] the heel, stitc[h] the upper, and attac[h] the upper to the sole.
