Range of motion tests are for doctors to analyze how much motion you have in a particular area. They oftentimes expose injury or the lack thereof. It is important to test your range of motion to see if there are possible things to improve upon. Range of motion tests are not strenuous, and should be treated as an overall health indicator. If you lack motion in certain joints, it can affect the quality of life one can live. If your body cannot move correctly it is very possible that pain will come soon after. In the spirit of overall health, it is can benefit you to know if there are certain areas of your body that need work.