The reflex should cause slight pronation or supination and slight elbow flexion. Repetitive motion of pronation and supination are also effective exercises for rehabilitation. Types of pronation include neutral pronation, underpronation (supination), and overpronation. When rotating the forearm, these movements are typically called pronation and supination. Together with the proximal radioulnar joint, the distal radioulnar joint permits pronation and supination. Brachioradialis puts the forearm into a midpronated/supinated position from either full pronation or supination. A lateral pinch and recurring grip can also be applied for supination and pronation. This movement is known as a pronation/supination test of the upper extremity. Exercising pronation and supination with a handle or screwdriver attachment will help stimulate the nerves. The role of the TFCC in supination and in pronation is a matter of dispute. This positive ulnar variance occurs during pronation. Such ideas include excessive pronation of the foot, overuse injury, and inversion ankle sprains. They once again become relaxed as the forearm enters pronation. There has been some speculation as to whether arch height has an effect on pronation. In normal pronation, the weight distributes evenly throughout the foot.