Trimwave H-wave therapy devices being used to treat a horse.

The Trimwave delivers H-wave therapy, it offers many more features than the older units, with fully selectable frequencies from 1Hz to 200Hz, including the popular 2Hz & 60Hz frequencies. It has a digital backlit screen that shows the battery charge state, frequency and intensity. The unit has an upgraded battery that is lighter and lasts longer, along with a simple push on\off button. The unit also has the option to set a timer upto 30 minutes or operate in a continuous manual mode. The Trimwave emulates the H-waveform found in nerve signals (Hoffman Reflex) enabling greater and deeper penetration of a low frequency current, whilst using significantly less power than other machines. As the H-waveform is completely natural to the body, it is accepted far more readily therefore requiring less current to stimulate the muscle. Furthermore, because of the natural wave-form of the signal. When the Trimwave is used at 60Hz (equivalent to 120Hz TENS mode) it also produces an analgesic effect. At 2Hz, the devices produces muscle stimulation. Muscle stimulation increases blood flow around the area being treated which then increases the healing effect, meanwhile reducing oedema by way of increased drainage via the lymphatic system.