No more estimates! Until now, many goniometric measurements required the practitioner to place one arm of the measuring device in either the horizontal or vertical position and the other arm in line with the body segment to be measured. Until now, the vertical or horizontal position could only be "estimated" imprecisely and usually did not provide completely accurate results. With the Absolute + Axis Goniometer from Baseline, an important inaccuracy is eliminated by specifying the exact horizontal or vertical position of one of the measuring arms. This allows the practitioner to measure shoulder and hip rotations (internal and external), cervical flexion, extension and rotation as well as lateral bending with the new goniometer.