"This is a staple of our core training as a progression from the plank," Eric and Ryan told POPSUGAR.
- On your knees, hold the ab wheel directly below your shoulders.
- Roll the ab wheel forward slowly, engaging your core as you do. Roll forward until your arms are fully outstretched and your back is flat.
- Use your core to pull your arms back in, rolling slowly back to the starting position.
- This completes one rep.
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