The Absolute+Axis (AA) goniometer removes the assume and eyeball by establishing a true vertical or horizontal
The Absolute+Axis (AA) goniometer removes measurement variability and allows the practitioner to concentrate on correct placement of the other goniometer arm and the patient s body position
Some measurements the AA goniometer is designed to improve are: shoulder and hip rotation (internal external) cervical flexion extension rotation and side bending; hamstring flexibility; and active ROM