I Avoid Push-Ups at All Costs — So I Tone My Arms With These Plank Modifications

This modification elevates your plank by destabilizing your support, forcing your entire upper body to engage, Koegel says.

• From your plank, walk your upper body base of support (either your forearms or palms!) forward about six inches, leaving your body where it is. For example, in a palm plank, your palms are about six inches in front of your shoulders. Grip the floor and push it away to engage muscles over joints, breathing evenly.
• For 3-4 rounds, do this for 20-second holds (add 10 seconds to your work increments for an added challenge!), with rest intervals at half the length of work intervals.

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