In the workout below that Fagan created, youll work your quadriceps, glutes, andhamstringswith high-intensity programming.

Then youll go into strength work, which presents a different kind of challenge by focusing on unilateral moves.

Ready to cross off your cardio box with a HIIT leg workout that takes less than 15 minutes?

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Katie Thompson

Heres what it’s crucial that you get started.

Complete 3 rounds total.

Complete the exercises in superset 2 for 45 seconds on each side.

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Rest for 30 seconds between rounds.

Complete 3 rounds total.

Only add the jump if you are comfortable with the traditional bodyweight version.

Skater exercise move

Skater Hop

Stand with your feet hip-width apart.

Lift your right leg and jump to the right.

Let your left leg straighten and follow.

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Swing your left hand in front of your body as your right arm swings behind your back.

Swing your right arm in front of your body as your left arm swings behind.

Continue, alternating sides, for 35 seconds.

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This is the starting position.

Keep your back flat.

(If your hamstrings are tight, you may not be able to lift your leg as high.)

Pause there and squeeze your butt.

Thats 1 rep.

Continue for 45 seconds, then switch sides.

Place your right leg on a bench or step and lift your left leg straight up toward the ceiling.

Pause for a moment at the top of the move.

Slowly lower your hips back to the floor.

This is 1 rep.