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Fitness Challenge

doing a burpee

I Did 30 Burpees For 15 Days and Here’s What Happened

Try it yourself: Three sets of 10 burpees for 15 days straight

by Danielle Zickl

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100 rep burpee pullup challenge

The 100-Rep Burpee-Pullup Challenge

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It’ll Hurt to Laugh after You Do This Toes-to-Bar Challenge

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22 New Ways to Crush Your Core

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38 Dumbbell Exercises That You’ve Probably Never Seen

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10-Minute Muscle Challenges Used by America’s Most Badass Trainer