Our expert says:
No, none. I'm not even sure how it is supposed to work.
As for Vibro shape, the same thing, I'm afraid - a gimmick. There's no physiological basis for how it's supposed to work, and I can assure you it doesn't. The only way to achieve that result is cardio training combined with diet to burn fat. Takes time and energy, unfortunately. And it has to be active, not "passive" like most of those devices promise.
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