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from POPSUGAR Fitness UK

Show your abs some love and take our crunch challenge! Perfect for those new to strength training, the plan is short and sweet — it takes just a few minutes each day for the next two weeks. At the end, you're sure to notice stronger, more defined

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from 30 Day Fitness Challenges

This 30 day crunch workout challenge has been designed as a great way to learn how to do the crunch exercise and get super strong abs.

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from 30 Day Fitness Challenges

This 30 day crunch workout challenge has been designed as a great way to learn how to do the crunch exercise and get super strong abs.

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