ROM and MMT

ROM is the amount of movement being looked at of a specific joint. When measuring ROM, the therapist will use a goniometer (placed in the proper position) to produce an accurate degree of how much the individual can move that joint. When using the goniometer, it is important for a therapist to palpate bony landmarks and place the joint in a proper position in order to enable consistency and reliability. This is to ensure that each therapist measuring ROM is using the same techniques, therefore, getting the same results and producing positive intrarater and interrater reliability. 

The manual muscle testing (MMT) measures the strength or weakness of an individual’s muscle and should begin in the same position (test position) each time which will produce the greatest contraction. The test position is generally in mid ROM and can be done against gravity or in an eliminated gravity position. When producing the test against gravity, the individual’s strength will be rated higher because they are able to use their muscles for a longer period of time and against a force. In a gravity eliminated position, the point being measured should be placed parallel to the ground in order for the muscle to not be used against the force of gravity. This would be rated lower than if the muscle is being used against gravity.

When a therapist uses each of these techniques, they are able to determine the problem being experienced whether it is due to ROM or strength. This will help them create an individualized treatment plan for rehabilitation and help the client get back to their normal or adjusted way of life.