Which statement best differentiates sensory-level TENS from motor-level NMES in mechanism and typical use?

Which statement best differentiates sensory-level TENS from motor-level NMES in mechanism and typical use?

• A. Sensory TENS activates small nerve fibers to block pain perception; NMES uses higher amplitude to produce muscle contractions for strengthening, facilitation, or edema reduction.
• B. Sensory TENS causes muscle contraction; NMES blocks pain perception.
• C. TENS and NMES have identical mechanisms.
• D. Pulsed current cannot evoke nerve responses.

Answer: (A)