Inclinometer & Goniometers

Goniometers and inclinometers

Goniometers and inclinometers are protractors used to measure the range of motion (RoM) of certain anatomical joints. This is done by measuring the size of the angle created by movements related to a given synovial joint. This provides a degree value that highlights the joint’s available mobility (RoM). Examples of anatomical joints that can be measured include the elbow joint (angle between the arm and forearm), the knee joint (angle between the thigh and leg) and the wrist.

Goniometer

A goniometer consists of two arms that are placed on both movable body parts of the anatomical joint whose range of motion (RoM) is to be measured. One of these arms is movable while the other is not. The movable arm is placed on the selected moving body part in order to follow its angle of movement. The available range of motion (RoM) is determined by the size of the angle created by this movement relative to gravity, and is measured in degrees. The FS Goniometer is an affordable goniometer for accurate angle measurements.

Inclinometer

An inclinometer is placed on the moving body part of a given anatomical joint. The patient then performs the movement of interest, and the result can be read immediately. These measurements are accurate and simple to perform. Baseline Bubble Inclinometer is an easy to use and commonly used inclinometer.

Differences between goniometers and inclinometers

A goniometer measures less accurately and easily than an inclinometer. Inclinometers provide either number values or are digital, and only need to be placed on the moving body part. Goniometers are placed on both joint-relevant body parts, between which the angle is measured in degrees. Therefore, inclinometers are much more accurate and convenient, and allow for the simultaneous use of multiple inclinometers.