Jackknife Crunches for Great Abs

Jackknife Crunch

A great way to work out all of your ab muscles is an alternate, bent-knee Jackknife crunch with a twist.

To start, lie down on your back with your hands behind your head. Crunch up and bring your right elbow to the left knee, and vice-versa. Then, bring in both knees. Keep alternating – left, right, center – for 10 to 20 reps.

For greater force, exhale before each crunch.

Jon Jon Park, CEO and Founder, Legacy Gym

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Swimsuit Ready Challenge

This exercise is part of our Swimsuit Ready Challenge (April 2-30, 2012). Do this exercise and comment below “I did this!” to be entered to win our $100 and $50 giveaways. You may enter up to one time per day through April 30th.

Also – be sure to share this on Facebook, Pinterest and other sites to let your friends cheer you on or – better yet – join in on the challenge so they can hang out on the beach with you this summer!

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Author: FizzNiche

This article was created with the help of FizzNiche Guest Bloggers. If you'd like your articles to appear on this site, come see the topics we're working on in the Fitness and Exercise category.

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