Which modality uses long pulse duration in the range of 100-300 microseconds?

Which modality uses long pulse duration in the range of 100-300 microseconds?

• A. Conventional TENS
• B. Acupuncture-like TENS
• C. Brief intense TENS
• D. Noxious TENS

Answer: (B)

Long pulse durations in the range of 100–300 microseconds are a hallmark of acupuncture-like TENS. This modality uses a low-frequency stimulus that evokes deeper tissue activation and often small muscle twitches, with the longer pulse width helping recruit deeper fibers. That combination tends to produce more pronounced, longer-lasting analgesia via endogenous pain-relief mechanisms, compared with conventional TENS, which uses shorter pulses (about 50–100 μs) at higher frequencies. Brief intense TENS and noxious TENS rely on different patterns and amplitudes rather than predominantly long pulse widths. So, the 100–300 μs range best fits acupuncture-like TENS.

Long pulse durations in the range of 100–300 microseconds are a hallmark of acupuncture-like TENS. This modality uses a low-frequency stimulus that evokes deeper tissue activation and often small muscle twitches, with the longer pulse width helping recruit deeper fibers. That combination tends to produce more pronounced, longer-lasting analgesia via endogenous pain-relief mechanisms, compared with conventional TENS, which uses shorter pulses (about 50–100 μs) at higher frequencies. Brief intense TENS and noxious TENS rely on different patterns and amplitudes rather than predominantly long pulse widths. So, the 100–300 μs range best fits acupuncture-like TENS.