The Crunch That Works Every Muscle | Men's Health

The Crunch That Works Every Muscle | Men's Health: "If you’ve been hibernating like a grizzly all season, the bear crunch will wake up nearly every muscle in your body—and attack your abs!

Here’s how to do it: Start on all fours, and raise your knees one inch off the ground. The next part is tricky—and what makes the move such an ab assault—so watch the video below to see how to do it correctly:"

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