More recently, ab stimulator manufacturers have begun selling these devices to the general public. Some companies claim that their devices support weight loss or build strong ab muscles without requiring exercise. However, there is no evidence that a muscle stimulator can substantially change a person's body.

Do Ab Stimulators Really Work?

Ab stimulators, a type of electronic muscle stimulator, are devices that can make your abdominal muscles appear firmer and more toned by electronically stimulating them. However, they won't help you lose weight, or get “rock hard” abs without diet and exercise.

Can a TENS unit reduce belly fat?

Surprisingly, without modifying their exercise or diet, the EMS did indeed cause significant effects on decreasing waist circumference, abdominal obesity, subcutaneous fat mass, and body fat percentage, leading the researchers to conclude: “The use of the high-frequency current therapy may be beneficial for reducing ...