Or, you know, you could even hurt yourself.

How to do HIIT exercise moves correctly

1.

Crunches

Crunches are one of the most classic ab moves, but theyre done incorrectlyallof the time.

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The most common mistakes?

Push-ups

To strengthen your arms and shoulders, push-ups are a go-to move.

If you do it in improper form, you wont reap all of the core and arm-strengthening benefits.

Two young women practicing ballet with a teacher in the dance hall.

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Squats

To properly hit your glutes in a squat, its all about having a strong, wide stance.

Avoid hunching over so that you get the most out of the move.

Tricep push-ups

For a burns-so-good tricep-busting move, the tricep push-up does the trick.

Woman doing hip exercises

Heres how to do it properly for that glute work.

Kettlebell swings

This ones an explosive exercise that gets your heart rate up as it strengthens your entire body.

But your core must be engaged and your back cant be hunched over.

Cropped image of woman doing lunge yoga pose

Hint: Its all about the hips.

To do it right, you actually have to emulate someone chopping woodwatch to see what that entails.

This is how to do it right for the full, sweaty effect.

Woman in leggings and bra doing Lunge with Arm Extended Up pose hip opener stretch during yoga session in morning at home.

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Woman doing arm exercise without weights while sitting on mat at home.

A woman in sports clothes does yoga or gymnastics at home. Daylight. She smiles