Concussion Managment Balance System (Sway Balance)
"Sway provides the first and only FDA-cleared mobile balance test. Using the built-in motion sensors of any iPhone, iPad, or iPod Touch* device, health professionals can administer a medical grade objective balance test in virtually and setting.
Sway Balance measures stability using the built in motion sensors of any iOS mobile device to quantify postural sway. While the device is pressed against the chest, a proprietary motion analysis algorithm calculates stability and provides an easy to understand value on a 100 point scale with 100 being completely stable and 0 being unstable.
The Latest Score displayed is taken from the test most recently completed. The Overall Score is comprised of the statistical mean of all previous test scores and serves as a baseline or control that can be compared against the latest score to detect change."