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Bored with your same oldcardio routine?

HIIT workout squat jack

Katie Thompson

Shake things up with a 15-minute HIIT workout.

you could get a lot done innota lot of time.

This variation between working super hard and resting will really get you breathless.

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And if youre moving fast through a complicated movesay, adeadliftfor instanceyou may be more likely to injure yourself.

As for the ideal ratio of work to rest in a HIIT-style routine?

That all depends on your current fitness level and abilities.

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And some people can maybe rest for 15 seconds and then do a 45 second bout of exercise.

So once youre at that level, you know youve found a good work to rest ratio.

(you could also considerthese five pre-workout stretchesdesigned to warm you up for any routine.)

squat jack exercise move

Ready to get breathless and seriously challenge yourself with a 15-minute bodyweight HIIT workout?

Keep scrolling for everything you oughta know.

The Workout

What you need:Just your bodyweight.

mountain climber

You may also want to use an exercisematfor comfort.

Squat Jack

This move is a pretty intense exercise for your lower body, says Freeman.

confirm youre feeling it in your muscles and not your joints.

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If you start to feel pain in your knees, remove the jump and simply squat.

Mountain Climber

Focus on form over speed with this exercise, says Freeman.

If you just start jogging your feet, youre likely going to lose your ab contraction, Freeman explains.

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Instead, think about engaging your core throughout the move.

It will still be a very challenging exercise even if youre not going super fast.

Make it easier by holding a high plank instead.

Skater

This lateral move really works your inner and outer thighs.

Make it harder by reaching one arm towards the opposite foot on the floor after each jump.

Make it easier by stepping side to side instead of jumping.

Burpee

Make this move harder by adding a push-up once youre in the high plank position.