11. For the person who has supination or pronation problems, this shoe will prevent rolling. 12. Pronation -supination of the first metacarpal is especially important for the action of opposition.13. This positive ulnar variance occurs during pronation . 14. The role of the TFCC in supination and in pronation is a matter of dispute. 15. Exercising pronation and supination with a handle or screwdriver attachment will help stimulate the nerves. 16. The manual goes on about things like splay, ulnar deviation, lateral inclination and pronation . 17. In pronation this is reversed, the superficial dorsal and the deep palmar ligaments are tighten. 18. Pronation of the foot is triplanar.19. Brachioradialis puts the forearm into a midpronated / supinated position from either full pronation or supination. 20. When both of these articulations are accounted together, it allows for pronation and supination to occur.