Burst mode in electrical stimulation is defined as:

Burst mode in electrical stimulation is defined as:

• A. A finite series of pulses or a finite interval of AC at a specific frequency flowing for a limited time, followed by no current flow.
• B. Continuous energy at a steady rate.
• C. Random, unpatterned pulses.
• D. A single instantaneous pulse.

Answer: (A)

Burst mode means delivering a short train of pulses at a chosen frequency for a defined duration, then turning the current off for a rest period before the next burst. The key idea is a finite series of pulses or a finite interval of AC with no current flow afterward, rather than continuous stimulation. This pattern contrasts with continuous energy that flows steadily, random or unpatterned pulses that lack a consistent timing, and a single instantaneous pulse which has no repetition. Using bursts can improve comfort and reduce fatigue by interrupting the stimulation with rest periods while still delivering therapeutic effect within each burst.

Burst mode means delivering a short train of pulses at a chosen frequency for a defined duration, then turning the current off for a rest period before the next burst. The key idea is a finite series of pulses or a finite interval of AC with no current flow afterward, rather than continuous stimulation. This pattern contrasts with continuous energy that flows steadily, random or unpatterned pulses that lack a consistent timing, and a single instantaneous pulse which has no repetition. Using bursts can improve comfort and reduce fatigue by interrupting the stimulation with rest periods while still delivering therapeutic effect within each burst.