The device comes from physical therapy, to help muscles heal
Electronic ab stimulators How they work:
A wide belt, wired to a battery, is worn around the waist. The muscles are then stimulated with tiny electrical shocks at timed intervals, designed to make them contract.
What are the benefits?
Manufacturers say that wearing the belt for 30 minutes a day will give you stronger, firmer and more toned abdominal muscles, and will reduce the size of your waist.
What the experts say:
The device comes from physical therapy, where it’s used to help injured muscles heal. But Cedric Bryant, chief science officer of the American Council on Exercise, says what works on damaged muscles will have minimal effects at most on healthy ones, adding that the only way to achieve visible abs is to lose belly fat. Meanwhile, Quist says the amount of stimulation needed to tone muscles with the devices would be so great that it’s likely you’d burn or injure yourself in the process. There’s also a risk that the machines could interfere with implanted devices like pacemakers.