No Joke: The Shake Bodyweight Performs Muscle tissues 66 Percent More challenging

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It’s the stuff of dreams for raunchy Saturday Night Live comedy writers, but the Shake Weight might be worth more than just a few laughs.

In case you haven’t heard of the Shake Weight, it is, according to its makers, the “revolutionary new way to shape and tone your arms, shoulders and chest.” Basically, it’s a 2.5 pound dumbbell with springs on either end, and instead of merely lifting, you, yes, shake it. Exercise physiologist Amy Dixon, group fitness manager for Equinox in Santa Monica, Calif., isn’t surprised the Shake Weights are selling so well – according to the American Council on Exercise (ACE), in its first year on the market, more than 2 million Shake Weights were sold and they have since surpassed the 4.5 million mark. “People are always looking for the new hot product and the quick fix,” Dixon says. “This product promises fast results and has a marketing campaign that promotes the idea of ‘sexiness’ – if you want sexy arms like the people on the commercials, you need a Shake Weight!”

But will it really give us sexy arms? Wanting to test out some of the claims made by the Shake Weight informercials – primarily that the Shake Weight can “increase your upper-body muscle activity by up to 300 percent compared to some traditional weights” – ACE commissioned a team of exercise scientists from the University of Wisconsin, La Crosse. The researchers compared the degree of muscle activation when using the Shake Weight to using a traditional dumbbell of equal weight, and they came up with some interesting results.

So, does the Shake Weight actually work? Find out after the break.
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