Low Back Sensor Setup

Last Updated: Feb 8, 2020 07:11 PM UTC

This is  how to set up and fit dorsaVi’s sensors for our low back applications.
These applications include: Low Back, Movement Challenges and Functional / Core Control.

The setup can be configured to use 2 sensors to measure movement or 4 sensors to measure movement and muscle activity.

The first thing to look for when fitting is to find the PSIS or posterior superior iliac spine. For a number of people there two dimples on their back which help to indicate the PSIS.

When you’ve found this, mark the top of the PSIS with a pen on both sides and using a ruler, draw a line between them. This line will be used to place the first sensor and guide the template to place the remaining sensors. dorsaVi uses templates for fitment as they allow for consistent placement of the sensors. There are four color coded templates based on height ranges, labelled as small, medium, large, and extra-large.

As you navigate through the software and you get to the fitment screen, the software will prompt you on which template to use. Once the sensors have been programmed you will be instructed to take them out of the dock for fitment.

To adhere the sensors you will need to use the disposable application pads or DAPs.

Start with the lower pelvic sensor and then use the template and software guide to place the remaining sensors. The system knows which sensors have been taken out of the dock and will guide you as to where that specific sensor needs to be placed.

Mark the back with a pen and the template then fit the patient with the DAPs and sensors in a slightly flexed or bent posture has greatest success in achieving good fixation of the DAPs and the sensors.

For a short session use the 30 minute DAPs or for a longer session you can use the 24 hours DAPs for the movement sensors. The muscle activity sensors have their own custom DAPs with built-in electrodes.