Hello, The profession I exercise regularly requires that I be brought to bend my back. As you can imagine, low back pain do not fail to remember to order! That's three weeks I use this daily belts before and after work with different massage programs starting with "A" which provides a suite of 4 types of massages offered. Being able, at will, adjust the intensity is an essential point so that each and everyone can handle the power or the programs broadcast by the electrodes. The extension comes with Belt Beurer EM38 enables adaptation of the latter to all sizes. If stronger pain, I even working the door, but without the electrodes and above the shirt, which corrects poor posture that one is often tempted to adopt ...: (eg. Curl to quickly retrieve an object that has fallen etc.) Caution, however, it is not a prescribed by an orthopedic belt so in case of problems, primarily prefer medical consultation, it's safer.
