Plank

Core · Bodyweight

How to do it

Forearms on the floor under your shoulders, body in a straight line from head to heels. **Tuck the ribs and squeeze the glutes**: without that you are just hanging off your lower back. Push the floor away with your elbows. You feel the whole abdomen, not your back. If you feel your lower back, tuck harder or shorten the hold: three bad minutes are worth less than thirty good seconds.

Also works: Shoulders

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