NeuroBelt doesn't ask you to push through the pain first. She wrapped the belt around her lower back, pressed start and stayed seated for 20 minutes with her hands free.
The heat runs first and relaxes the surface muscles that have been gripping for years. Then clinical grade NMES reaches 30 to 50 millimeters deep and makes the deep muscle contract, and that contraction is one you can really feel. Clinics warm the tissue first for a simple reason: on a tense muscle, the signal is weakened and the contraction never fully lands. Most surface stimulation stops at 5 to 8 millimeters, well short of that muscle.
NeuroBelt helps stimulate that muscle, session after session, while you sit. If you can sit for 20 minutes, you can do what she did.
Relief isn't the same thing as repair. A TENS unit blocks the pain signal while it runs, and when you switch it off, nothing underneath has changed. NMES does a different job: it makes the deep muscle that holds your spine contract again. NeuroBelt runs heat first, then NMES, the step every other home device skips.