These bodyweight moves hit key upper-body muscles.

You may already know that planks are great for strengthening your entire body, but do you know how long to hold a plank to max out your efforts?

Learn how to do a hollow body hold with proper form and try variations with your arms vertical or knees bent to activate your core as you work toward the full move. Follow our step-by-step instructions and tips.

You’ll smoke your abs, shoulders, and legs.

Strong abdominal muscles are key in maintaining better posture, balance and, yeah, they look great, too. Discover the seven yoga poses you need to target your core.

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Planking is an exercise suitable for anyone, anytime, anywhere. When done properly, planking improves your core strength and posture.

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This modification is ideal for anyone looking to build core strength

And feeling strong AF while doing it.