The "Secret" Of Madonna's FitnessSadie Stein3/21/11 7:00pm83EditPromoteGo to permalink"Her arms are toned and sinewy, her stomach harder than concrete and it is impossible to spot anything that looks as if it might ever wobble." Why yes we are talking about Madonna! And some people are wondering exactly "how she does it." We could tell them: money and a lot of work. But for those looking for specifics?