What sensations are reported with brief-intense TENS?

What sensations are reported with brief-intense TENS?

• A. Numbness
• B. Burning, needling sensation, twitch and tetanic contractions
• C. Only mild tingling
• D. No sensation

Answer: (B)

In brief-intense TENS, the goal is to deliver a high-amplitude, short-duration stimulus that produces strong sensory input and often motor responses. The sensations described—burning and needling-like paresthesias, along with visible muscle twitches or even sustained tetanic contractions—occur because the current is intense enough to recruit both sensory fibers (producing sharp, needle-like, burning feelings) and motor nerves (leading to muscle contractions). This pattern distinguishes brief-intense TENS from conventional TENS, which aims for comfortable tingling without contractions. Numbness or only mild tingling would be less consistent with this mode, and no sensation would contradict the high-intensity nature of brief-intense stimulation.

In brief-intense TENS, the goal is to deliver a high-amplitude, short-duration stimulus that produces strong sensory input and often motor responses. The sensations described—burning and needling-like paresthesias, along with visible muscle twitches or even sustained tetanic contractions—occur because the current is intense enough to recruit both sensory fibers (producing sharp, needle-like, burning feelings) and motor nerves (leading to muscle contractions). This pattern distinguishes brief-intense TENS from conventional TENS, which aims for comfortable tingling without contractions. Numbness or only mild tingling would be less consistent with this mode, and no sensation would contradict the high-intensity nature of brief-intense stimulation.