Test Positioning

When measuring range of motion (ROM), the use of bony landmarks and proper positioning are very important. Bony landmarks help the therapist properly align the goniometer to the joint being measured. The parts of the goniometer are placed based on their respective bony landmarks to measure ROM for a particular joint. Testing position for ROM is important because the position of the client aids in whether the ROM measurement will be active of passive and to insure that the correct movement is being produced. These two aspects of measuring range of motion help for the measurements to be reliable when being reassessed, whether it is the same therapist or a different one taking the measurements. When performing manual muscle testing (MMT) the testing position is an important component as well. The testing position for MMT is different than ROM measuring. The purpose of test position for MMT is for the client to be able to generate the greatest amount of strength due to the cross bridge formations of the muscle fibers. This is achieved by positioning the clients where they are in optimal position for contraction at the respected joint of the muscle(s) being tested. The test position for MMT also determines if the movement will be against gravity or gravity eliminated. Gravity eliminated test positioning is required for clients who are unable to preform a movement against gravity and to complete this, the client is positioned to where their desired movement will be parallel to the ground.