The iPronator is objective pronator drift test using iphone/ipod touch.
The prontor dift test is widely used neurolgical examination to detect mild arm weakness. Therefore, iPronator can be used when subtle arm weakness is suspected.

Methods:
Two iPhone or iPod Touch devices were placed on each of a subject’s forearms, and held firmly in place with Velcro above the wrists. After attaching the devices, the subject raised his/her arms. A Bluetooth connection was established between the devices on each arm by touching the connection buttons on each device, and recording was initiated by touching the display panel. The examination was performed for 20 seconds with the patient’s eyes closed. Drift and pronation data were collected by the iPronator in real-time and the raw data were sent to a personal computer via e-mail.