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The Shake Weight is a modified dumbbell that oscillates, purportedly increasing the effects of exercise. As a result of the perceived sexually suggestive nature of the product, infomercial clips of the exercise device have gone viral. Johann Verheem is the inventor of Shake Weight and CEO of FitnessIQ. By August 2010, a reported two million Shake Weight units had been sold for a total of $40 million in sales. ==Specifications== The Shake Weight has a female and male version, though was initially released as a product "designed specifically for women". The female version weighs 2.5 lb. Per official company press releases, "Based on a groundbreaking workout technology called Dynamic Inertia, which engages the muscles in the arms, shoulders and chest in an entirely new fashion, the Shake Weight increases upper body muscle activity by more than 300% compared to traditional free weights". The company website further adds that the product has "scientifically proven results" and that the user can "get incredible results in just six minutes a day, three hundred sixty-five days a year".〔 In comparison, the male version weighs twice as much at 5 lb. The product appears to be based on "vibration plate technology—machines that vibrate to make the muscles relax and contract several times a second—thought to enhance the impact of exercise". The company claims this action tones the upper biceps, triceps and shoulders. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Shake Weight」の詳細全文を読む スポンサード リンク
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