Lie on your nondominant side. Support your weight with that forearm and the outside edge of that foot. Your body should form a straight line from head to ankles. Pull in your abs as far as you can, and hold this postion for 10 to 30 seconds, breathing steadily. Relax. If you can do 30 seconds, do one rep. If not, try for any combination of reps that gets you up to 30 seconds. Repeat on your other side.

Target: Core

Equipment Needed: none

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