Here’s one former diva’s favorite move.

What powers the performances of these female wrestlers?

First, of course, theres the attitude.

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But undergirding all those takedowns and locks is the WWE Divas core.

There isnt a millisecond it isnt!

So a strong core is imperative for overall health and fitness.

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

In wrestling you should probably have a strong core to brace against resistance, Hammond says.

Today, Hammond teaches shadowboxing in a new Equinox series called Knockout.

Shadowboxing is truly a full-body workout.

Woman doing hip exercises

Hammonds favorite core-strengthening move is the extend sit-up twist.

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Cropped image of woman doing lunge yoga pose

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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