FAQ

FES (Functional Electrical Stimulation) vs. TENS (Transcutaneous Electrical Nerve Stimulation)

WHY IS FES A BENEFICAL TYPE OF ELECTROSTIMULATION?

  • FES is designed to stimulate motor and sensory nerves.
  • FES replicates the body’s own electrical impulse to generate a muscular response.
  • FES uses low voltages to obtain deep muscle movement (9-11 Volts).
  • FES provides computer-regulated signals, generated by software, for a clean & precise waveform.
  • FES uses a balanced-biphasic waveform for stimulation that does not produce ion accumulation.

Why is TENS different from FES?

  • TENS is designed to stimulate sensory nerves, not motor nerves.
  • TENS sends an impulse to confuse the sensory pathways to“gate” or block the pain sensation.
  • TENS produces a strong, stinging sensation if muscle contractions are induced.
  • High voltages are required to obtain deep muscle movement (120 Volts)
  • TENS uses an unbalanced waveform. Waveform adjustments are necessary to avoid accommodation by the body, so that the signal remains effective.

FES vs TENS