Video on the reasoning behind electrode placement for shoulder pain using tens or interferential mode with the Infrex combination unit.   Interferential treatments require a larger sticky surface area due to the higher concentration ( current density) of interferential therapy.

   The Infrex Plus has both a tens mode and an interferential mode however the tens electrodes are not sufficiently large for treating with interferential mode due to current density of the treatment.  Bob explains what current density means and why it is important in this how to video for shoulder pain.