Reviewed by Bryan Cortez, MS
Roll only as far as your back stays flat — the abs resist the arch, that's the whole exercise.
How to do it
No-Fly Zone
under 5 reps (rolling out past your control just arches and strains the lower back)
Programming
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Join the free Physique Skool community to unlock programming and troubleshooting
Join free on SkoolThe Evidence
Builds powerful anti-extension core strength under stretch. NOT a beginner move — a sagging back makes it a lower-back exercise.
SFR — 2.3
Programs, coaching and the full library — inside the community.
Train hard and hit your protein first — that's most of it. If the fundamentals are handled, two are worth it for building muscle:
Monohydrate, 5 g/day. The most studied muscle supplement.
An easy way to hit your daily protein target.
These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure or prevent any disease.