You dont need to hit the gym to get a great workout.

Heck, youdont even need equipmentor shoes.

For proof, check out this five-part bodyweight circuit that celebrity trainerErin Opreashared on Instagram on Monday.

Young women practicing yoga in gym

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The first portion of the circuita three-part lunge seriesworks your legs from multiple angles.

Youll strengthen your quads, outer thighs, inner thighs, glutes, hamstrings, and calves.

All three variations will challenge your balance, too, she adds.

On top of the strengthening and balance benefits, the sequence gives you a stellarcardio workout.

All of these moves will get your heart rate going, says Oprea.

Theres more time [that your muscles are] under tension, she says.

Youll complete the following circuit three times through with no break in between the moves.

Then, rest about 1 to 2 minutes in between each circuit.

For this rest, you might either relax completely, or jump rope for active recovery, says Oprea.

Allot about 15 minutes for the total workout.

you might also stand all the way up in between each rep to reduce the tension on your legs.

Dont let it angle sidewaysthis will help engage the side of your butt, she explains.

Keep your chest up and shoulders back and engage your core for stability.

The sliding leg should stay locked and straight throughout the reps, says Oprea.

This will help you stretch your hamstrings and get lower.

The stationary leg, on the other hand, should remain slightly bent.

The goal is to get that quad parallel to the ground, she adds.

Youre not just free flying your legs, says Oprea.

Think about squeezing your glutes and quads as your legs glide in and out in a very controlled manner.

Youll also want to keep your butt down as you move your legs.

Its not bottoms up, its bottoms down, says Oprea.

For a more beginner-friendly version of this move, simply hold a plank for 30 seconds.

Keep your butt down as you complete the reps, advises Oprea.

If you should probably dial down the intensity of this move, simply reduce your speed.