Rotation, flexo-estension and the left or right lateral flexion of the head are functionally very important parameters to check the symmetry and the normal excursion of the head that can be performed by the patient. Various means have been suggested to check these parameters, ranging from clinical observation to the use of goniometers and inclinometers.
The "Cervical Test" is an electronic digital helmet for posture analysis and checks these movements within the space of the patient’s skull. The system has three Wheatstone bridges with magnetic space sensors that record the magnetic field incidence in a given sensible direction.
The sensors are assembled orthogonally, allowing reading the earth’s magnetic field incident along the three space axes. In addition to this, the equipment uses a two-axis accelerometer, allowing the reading of its inclinations towards the gravity vector.
This diagnostic unit can be integrated with all our posture analysis laboratories.
The computer is not included.
NOTE ON CALIBRATION:
The Cervical Test is provided with a three-axis (3D) position sensor, two gravity sensors and a geomagnetic one.
It's suggested for calibrating to perform a continuous and constant movements and cover all the possible positions.
Execution speed should be natural and smooth to let the sofware read every position data - overall. It has no critical impact on the calibration process. Keep the sensors away from electromagnetic and ferromagetic sources.