What is the instruction for intensity in lumbar paraspinal NMES?

What is the instruction for intensity in lumbar paraspinal NMES?

• A. Hold at minimal current
• B. Palpate for and look for visible contraction
• C. Ask patient for pain level
• D. Measure with EMG

Answer: (B)

The main idea is to set NMES intensity by producing a visible or palpable contraction of the target muscles. For the lumbar paraspinals, you dial up the current until you can both see the spinal muscles contract and feel a small, controlled muscle squeeze under your fingertips. This approach confirms that motor units are being recruited without overdoing the stimulus, which helps protect surrounding tissues and keeps the patient comfortable. Palpation and observation are practical, direct ways to verify that the intended muscles are responding. Holding the current at minimal levels wouldn’t evoke contraction, asking about pain alone doesn’t ensure a functional muscle response, and using EMG to set intensity isn’t typically part of routine NMES practice.

The main idea is to set NMES intensity by producing a visible or palpable contraction of the target muscles. For the lumbar paraspinals, you dial up the current until you can both see the spinal muscles contract and feel a small, controlled muscle squeeze under your fingertips. This approach confirms that motor units are being recruited without overdoing the stimulus, which helps protect surrounding tissues and keeps the patient comfortable. Palpation and observation are practical, direct ways to verify that the intended muscles are responding. Holding the current at minimal levels wouldn’t evoke contraction, asking about pain alone doesn’t ensure a functional muscle response, and using EMG to set intensity isn’t typically part of routine NMES practice.