Select the tooltip to learn about the different waveforms

Select the tooltip to learn about the different waveforms

Monophasic

• One phase each pulse
• Also known as pulsating DC
• Unidirectional current flow
• One electrode is positive (anode), and the other is negative (cathode)
• Current flows positive to negative

Biphasic​ Asymmetrical

• 2 opposing phases are contained in a single pulse.
• Bidirectional current flow
• Each electrode acts as a cathode (negative) for part of the waveform.
• Asymmetrical: The positive and negative phases are not equal in amplitude or duration.
• Some evidence that asymmetric better for smaller muscle groups.

Biphasic​ Symmetrical

• 2 opposing phases are contained in a single pulse
• Bidirectional current flow
• Each electrode acts as a cathode (negative) for part of the waveform
• The positive and negative phases of the waveform are equal in amplitude and duration.
• Symmetric is preferred to asymmetric if motor neurons are the target