Practitioners claim that the introduced current enhances the healing process underway in that same tissue.
Critics, such as David Gorski, call proponent's claims of the technique altering body tissue's vibrational amplitude pseudoscience.
[1] Frequencies are simultaneously applied used on two channels so they intersect or cross in the area to be treated.
Clinical experience shows that both frequencies need to accurately reflect the condition causing the problem (like inflammation or scarring) and the tissue being affected (like the nerve or spinal cord) in order for the treatment to be successful.
[1] In addition to the implausibility of the underlying mechanism, critics further argue that the treatment lacks a body or research neither establishing the phenomenon nor the clinical claims.