Ref. 1:
Koju ćemo struju i kada upotrijebiti ovisi o kliničkoj slici bolesnika. U akutnoj fazi križobolje koristimo tzv. hladne struje, kao što su: klasična galvanizacija, ultrapodražajne struje (URS), dijadinamske struje (DDS), interferentne struje (IFS) i transkutanu električnu nervnu stimulaciju (TENS).

Ref. 2:
Combination Therapy
In general terms, combination therapy involves the simultaneous application of ultrasound (US) with an electrical stimulation therapy. In Europe, Diadynamic Currents are frequently utilised, but in the UK, US is most often combined with bipolar Interferential Therapy (IF).

There is a significant lack of published material in this area. And much of the information herein is anecdotal or based on the experience of those who use the modality frequently. Broadly, the effects of the combined treatment are those of the individual modalities. There is no evidence at present for any additional effects which can only be achieved when the modalities are used in this particular way.

Ref. 3:
As an example of general mechanisms of electro-therapy, let us look at DDC (Dia-Dynamic Current or P. Bernard current).
DDC is made up of impulses half-sinusoidal in shape with a frequency of 50 – 100 Hz with delayed exponent background. DDC excites myelinated cutaneous nerves, which are sensitive to this current. Ascending afferent impulses go towards the substantia gelatinosa in the posterior horns of the spinal cord and then along paleo-spinal-thalamic, neo-spinal-thalamic and spinal-reticular-thalamic tracts and activate opioid and serotonin-ergic systems of the brain stem
http://www.achew.com/scenar.htm