Whether you run, swim, row, or walk, your core muscles are super important.

Even sitting and standing properly requires core strength and engagement.

This move engages your core, and the dumbbell helps the activity go by more quickly.

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This17-minuteab-burner also features a healthy dose of side planks, which can be a bit hard for balance.

But Copeland is clear: Wobbles arent weaknesstheyre simply information about your body.

As you swap sides, she recommends paying attention to each movement.

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

Nike Master Trainer, yoga instructor, and fitness model

Maybe one side is shakier than the other, but theres nothing wrong with that at all.

Its gotlots of little surprises.

Are you ready to feel the burn?

Woman doing hip exercises

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Cropped image of woman doing lunge yoga pose

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

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