Verity Medical NeuroTrac IFC Rehab Operation Manual page 18

Description of TENS/NMS modes
1. Continuous /Conventional TENS (CON)
Continuous train of constant value pulses (fixed frequency and pulse dura�
tion) on both channels delivered with no interruption for entire treatment
period.
2. Burst Modulated TENS (BST)
Regular burst of pulses ( nine pulses of 200µS or 175 µS at 150Hz) repeated
2 times per second .This mode is comparable to the low rate TENS technique
except that each low rate pulse is substituted for by a short BURST of pulses.
It is a combination of conventional and low rate TENS.
3. Modulated TENS
Systematic modulation( lowering from and rising to the maximum settings)
of the pulse duration and pulse frequency . This mode was designed to help
prevent nerve accommodation that some patient's experience. It is achieved
by continuously cycling the pulse width and rate.
Modulation is exponential. For example: Modulation time 6 seconds,
50�250 µS means starting at 50 µS increasing exponentially (fast then
slow) to 250 µS in 3 seconds and returning (fast then slow) back to 50 µS
to complete the cycle in 6 seconds.
4. NMS (Neuromuscular Electrical Stimulation)
Intermittent stimulation where output amplitude ramps up in to adjusted
level and stimulates for a defined WORK time , then it ramps down to 0
mA, and stays with no stimulation for a defined REST time. Cycle is repeated
over programme duration.
NeuroTrac™ IFC Rehab Operation Manual
18