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/ Source: TODAY
By Gabrielle Frank

A plank is a great exercise — it works your entire body, from your butt to your core and shoulders. It’s a favorite of Dolvett Quince’s, resident trainer on The Biggest Loser, because, “It gives you upper body strength, lower body strength and it strengthens your core,” he told TODAY.

Though, it’s easy to get it all wrong. Here, Quince shares three common mistakes people make when doing a plank. Watch the video above, or check out his tips for plank perfection below:

1. Your hips are too high.

People tend to hyper extend their hips, they push their hips up without realizing how high they are. The best thing you can do is make sure your hips are low, in line with your shoulders. Then you’re in a true plank!

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2. Your hips are too low.

This can hurt your back. Tighten your core to bring your belly up to that same shoulder height. If you find that your hips are too low to the ground, you’re probably doing it wrong.

3. Your hands are in the wrong spot.

Your weight should be evenly distributed across fists, elbows and forearms. Don’t have your hands too close or far apart, make sure they’re in line with your shoulders.

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If you’re on your elbows and forearms, you have more support. Using just your palms makes the exercise a bit more difficult.

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If you’re still having trouble, try to practice your form in front of a mirror and try to keep your body as straight as possible.

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