1. TENS VS INTERFERENTIAL CURRENT (IFC)
WHAT IS THE DIFFENCE BETWEEN TENS AND IFC?

TENS RUNS ON A LOW FREQUENCY AT 1000hz or less

IFC RUNS ON A HIGHER FREQUENCY AT 1000-10,000 hz . ZYNEX IFC
DEVICE IS SET AT A 4000hz CARRIER FREQUENCY.
HOW DO YOU EXPLAIN THE DIFFENCE BETWEEN THE TWO CARRIER
FREQUENCIES?

TENS DELIVERS MOST OF THE STIMULATION UNDER THE
ELECTRODE OR SUPERFICIALLY (UNDER THE SKIN) THE CARRIER
FREQUENCY CAN RANGE BETWEEN 1-150 hz. MUCH LOWER THAN IFC
RANGE. TENS IS LOW FREQUENCY.

IFC CURRENT PENETRATE DEEPER INTO THE TISSUE BECAUSE THE
CARRIER FREQUENCY IS SET AT 4000hz . MUCH HIGHER THAN TENS.
IFC CONCENTRATES AT THE POINT OF INTERSECTION ( WHEN WE
CROSS THE LEAD WIRES) BETWEEN THE ELECTRODES. THIS
CONCENTRATION OCCURS DEEP IN THE TISSUE AS WELL AS AT THE
SURFACE OF THE SKIN. IFC IS MEDIUM TO HIGH FREQUENCY.

IFC SKIN RESISTANCE DECREASES AS PULSE FREQUENCY
INCREASES. FOR EXAMPLE , AT A DEEPER FREQUENCY OF 4000hz
CAPACITIVE SKIN RESISTANCE IS EIGHTY TIMES LOWER THAN WITH
A FEQUENCY OF 50hz