Shake Weights, heavily advertised on TV, have entered the public consciousness enough to have been parodied on "South Park" and "Saturday Night Live," among other venues. While the jokesters mock the ...
Vibram running, Kangoo jump workouts, slide boards, six-minute abs, shake weights, the ThighMaster ... fitness trends and gadgets come and go. But one type of exercise has stood the test of time: body ...
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