Youll do one ab exercise each day, Monday through Saturday.

(But you could do this workout any time!)

Then on Sunday, youll do the full 15-minute workout.

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Heres your 15-minute HIIT ab workout

1.

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Forearm plank

Thisfoundational ab exercisechallenges your core stability and strength, which translates to better balance throughout everyday activities.

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

trainer at theFhitting Room in NYCwith certifications in personal training, kettlebells, strength and conditioning, pre- and post-natal fitness, TRX, and running mechanics

Tuck up

Tuck upsimprove core strengthand dynamic power, Lauder-Dykes says.

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Woman doing hip exercises

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.

trainer at theFhitting Room in NYCwith certifications in personal training, kettlebells, strength and conditioning, pre- and post-natal fitness, TRX, and running mechanics

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