How does the PROPRIO® measure the user’s movement?
Research shows that it is better to assess a person’s dynamic stability using trunk measurements than lower leg postural readings. Other than the $1.2 million CAREN system, the PROPRIO® Reactive Balance Systems stand alone in measuring trunk movement. The PROPRIO® Reactive Balance Systems feature an ultrasonic measuring system that consists of a triangular shape transmitter that is belted on the user’s lumbosacral joint and a larger triangular shaped receiver located on the back of the machine. The transmitter emits ultrasonic waves to the receiver. As the user’s body position changes, the ultrasonic waves convey these changes instantaneously. The relative position of the transmitter is recorded in three dimensional space (X, Y, and Z coordinates) every 1/4 of a second.
