The 3 most effective ab workouts, according to experts

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• According to a study done by the American Council on Exercise, there are three abdominal workouts that are most effective in achieving a strong core and washboard stomach muscles.
• Bicycle crunches use all of the abdominal muscles, including the rectus abdominis — the front ab muscles that make up the visible six-pack.
• The captain's chair stimulates both the abdominals and the obliques that line the sides of your abs. 
• Finally, crunches done on a medicine or balance ball will engage the rectus abdominis and, due to the balance they require, will engages smaller ab muscles, giving a well-rounded burn. 

Six-pack abs are impressive to look at, and often conjure up images of hours spent in the gym — however, obtaining a strong core is surprisingly easy, if you know how.

Visible abs are actually made in the kitchen — a diet leading to a low body fat percentage is the most important things — but there are various workouts that will successfully harden and transform your abdominals.See the rest of the story at Business Insider

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