You actually made a good choice by buying this machine for your Mom who has arthritis. Based on the statistics of the National Institutes of Health, there is a significant improvement in functionality and reported lessened pain after 3 months of therapy using vibration. The use of vibration is therapeutic in the sense that it eliminates toxins from the body resulting in speedy healing of inflammation. What’s even more beneficial is that your mom can lose weight in the process and start to live a healthier and more comfortable life.