All of your movement stems from your core—including your abs, back and hip muscles—which means it’s key to keep this area of your body strong. Planks are one of the best core moves you can do because they’re incredibly portable, gentle on joints (involving only isometric contraction), and easy to change, so you can increase your difficulty and challenge yourself in new ways as you build your strength. Here’s how to perform a classic plank, and a few ways to mix things up.
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How to make it easier
Planks are static, however—unlike push-ups. Once you’ve mastered pulling your abs in toward your spine and staying stable for ten seconds, it’s wise to try the classic plank. Simply adjust the amount of time you hold the move. Start with just a few seconds and add a few for each time you perform the exercise.
How to make it harder
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