Why Does Proper Test Position Matter? (MMT & ROM Testing)

   

     One of the biggest factors that can make or break manual muscle testing (MMT) and range of motion (ROM) testing is how we initially position our client. For ROM testing, a key way to determine we are getting the most accurate measurements is by palpating to find the precise bony landmarks on the client. By detecting these bony landmark sites, we are able to know exactly where to position our goniometer for the testing, instead of just going by where we would think would be the correct location. For example, if we are measuring elbow flexion, the axis on the goniometer would align with the client's lateral epicondyle of the humerus, the stationary arm would align with midline of the humerus towards the acromion process, and the moving arm would align with the midline of the radius in line with the radial styloid process. The client's body position in itself is also important not only to reduce their risk of injury, but to also increase reliability of our results. 

    For MMT, we have to pay very close attention to the test position, which is mid ROM in the specific joint we are looking at. The middle ROM is always our testing position because it is where the client's muscle is being put under optimal muscle contraction. It should also be kept in mind that a slight change of the clients plane and position can alter our measurements. When performing MMT gravity is an added resistance that is often not taken into account. Once it is evident that the client cannot hold their contraction in a gravity resistant position, the therapist should eliminate gravity by positioning the client in the proper position that allows their movement to be parallel to the ground. This takes the added resistance away, and allows the movement to be easier for the client to perform. 

Resources: https://www.pinterest.com/pin/300685712616156273/