From Business: The Florida Department of Transportation is a statewide public service agency that provides response and recovery services in cases of natural and man-made emergeâ¦
The system's modularity is derived from the use of PALS webbing as rows of heavy-duty nylon stitched onto the vest to allow for the attachment of various MOLLE-compatible pouches and accessories.
TENS machines are thought to work in two ways: 1  On a high pulse rate of 90-130 Hz (the normal method of use), the electrical impulses generated by the TENS machine interfere with and block pain messages sent to the brain. 2  This is due to the gate control theory of pain.