Baseline® measurement

About the Baseline® brand

Baseline® measurement instruments have been used by orthopedists, therapists, FCE administers and professors since the 1980s. Many of you who have received therapy after an injury have probably had your progress tested throughout your rehabilitation with a Baseline® measurement instrument.

The product line includes instruments to measure strength, range-of-motion, sensory perception, body measurements and more. Many Baseline® instruments are manufactured in the USA and carry the CE mark for sale outside the USA.

The Baseline® product category

Below is a listing of some Baseline® products. Select a category link to learn more.


Baseline® products


The Absolute+Axis® (AA) goniometer establishes a “true" vertical or horizontal to the start point of a measurement. Many goniometric measurements require one arm of the goniometer to be positioned either horizontally or vertically. The other arm is then lined-up with the patient's body part. Until now, the practitioner had to “assume" or “eyeball" the vertical or horizontal position. This interpolation is often incorrect and introduces measurement error. The Absolute+Axis® 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.
A finger goniometer measures range-of-motion (ROM) of finger joints (metacarpophalangeal and interphalangeal) and other small joints including toes.
Clear plastic gauge simplifies and speeds measurement of composite finger flexion and finger-thumb opposition. Scale measure up to 10 centimeters.
The Baseline® X-ray goniometer can document angles on X-ray negatives. 180° head has two opposing scales marked in 2½° increments. Black anodized aluminum with easy-to-read white radiopaque markings.
Extendable goniometer offers easy-to-read scale, and adjustable leg length for measuring large and small joints. The steel arms extend for larger measurements.