too good to be true. The only way any kind of electric fitness stuff like that works is if you use your muscles to "fight" against it....its like those toning tables that waggle your arms and legs. If you just lie there and let them do it you gain nothing.
I bought one a couple of years ago primarily to help my wife who is my main carer and subject to the occasional twinge while looking after me. She certainly feels the benefit as does anyone else who gives it a go.
When switched on and after the initial surprise that the undulating sensation gives everyone finds it quite therapeutic.
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