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Did someone say leg day? Adding the sweat this September (or any time of year) just got a whole lot easier and more enjoyable with this HIIT workout you can do at home. Get ready to feel the lower body burn (in a good way!) with this 13-minute routine.

Like most HIIT workouts, you'll move through 4 rounds of 4 unique exercises, each performed for 30 seconds with a 10-second rest in-between. Instructors MacKenzie Miller and Briohny Smyth offer modifications on and explanations of the correct form for each move, so if you're new to this, it's the perfect class. If you're a HIIT pro, this routine still provides plenty of intensity. So blast some music and hit play below to get those legs going.

To recap: No equipment is needed for this class.

Round 1: 30 Seconds on, 10 seconds rest.
1. Jump Squat
2. Walking Lunge
3. V-Up
4. High Knee
-Repeat 3 times-

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