TENS machine might not be that super machine that can relieve every kind of pain you may experience, but according to 7 out of 10 patients using it, there is really a huge change in their condition upon using this machine. TENS machines work by delivering small amount of electric current using the electrodes that are placed around the area of discomfort. The therapist will have to experiment first to give you the best position possible. The pressure of the machine is adjustable depending on your body’s need and will also be different with respect to the device you use.
If you are planning to purchase TENS machine for you, one thing you should check is the range of its bandwidth which should be between 2 - 200Hz. You also have to choose whether you want to receive the frequency of the electric current in a constant or pulsed manner. The electrodes of TENS machine which act as the conductor of electric current are built with a soft and pliable texture of cloth material ideal for a person’s skin. The wires attached on the electrodes can be of different length to make sure that some of them will reach other parts of the body affected with pain. There are no restrictions when placing the electrodes; you only need to find the area where the pain occurs strongly.
There are some TENS units having only one set of electrodes while other types are built with 2 sets. In this case, those with a single set are less expensive compared to those that have “dual channel”. This doesn’t really mean that the single channel is less effective, it is just a matter of requirements you need for your body.
It is best to consider TENS machines that offer a variety of different programmes to match most needs. Furthermore, some types of these machines with simple function programmes would be better because even patients alone can manipulate the machine according to their body’s response.
Reading through different reviews and recommendations could help you make a decision whether what type to buy. Searching over trustworthy sites that provides an array of machines will imply that there's no prejudice towards one brand or any other. This impartiality will frequently mean that you will get the unit ideal for you instead of one from the narrow range which might not be the one you are looking for.