AbMat Sit-Ups (Diamond Sit-Up), I'm Not Going to My CrossFit Gym — Here's the Simple 2-Week Workout Plan I'm Doing at Home

Lie on your back, and open your legs into a diamond shape (aka butterfly legs) with the soles of your feet pressed together and knees out wide. Extend your

WOD/BLOG – CrossFit Seize the Day

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Basic AbMat Sit-Up Variations

AbMat Sit Ups “too easy”? : r/crossfit

ABMAT SITUPS TECHNIQUE - PARADISO CROSSFIT

How to improve my sit-ups - Quora

CrossFit

Daily Feed - Archon Bracket

Daily Feed - Archon Bracket

What are some simple but effective ab exercises that would help grow your abs? How often should I do ab exercises (no equipment)? - Quora

The AbMat Sit-up

What exercises can I do at home to build muscle? - Quora

FITBOMB: March 2011

ABMAT SITUPS TECHNIQUE - PARADISO CROSSFIT