Target your fast-twitch muscle fibers and you’ll build stronger abs in less time. Spanish researchers found that doing abdominal exercises at a fast tempo activates more muscle than doing them slowly. Crank out as many reps as you can do in 20 seconds for a more effective core workout in less time.
Monday 24 August 2015
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More Fitness On: 6 Quick Tips to Get your Abs to Show
6 Quick Tips to Get your Abs to Show
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