25 Ways to Tone Your Abs Without Crunches
17 of 25
Get on all fours, with your knees under your hips and your hands under your shoulders. Remember to keep abs engaged and keep your back flat.
Reach out with your right hand and extend your left leg out behind you.
Round your back and head to connect your right elbow with your left leg under your body. Extend right hand and left leg back out.
Repeat for a total of 15 times, then switch sides.
quadruped in action here
Source: POPSUGAR Studios
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