You’re now halfway through Svava Sigbertsdottir’s 30-day fat-burning home workout challenge! Today is Day 16, and the good news is, you don’t need any equipment. Let’s jump right in.

Today’s workout includes sumo squats, high planks into downward dog, and side planks. These moves come with a twist to really get you sweating. It’s important to control each movement for a solid burn in your core, which will help build strength and stamina. Svava emphasizes that the challenge needs to be tough; otherwise, your core won’t get the workout it needs to achieve a toned look.

When you start to feel tired, make sure you open up your heart by standing up straight instead of bending forward. This helps you breathe better and keeps your energy up. Keep your chest open and take deep breaths.

You’ve got this—just keep moving! The plan is simple: 10 minutes, five moves, two sets. Do each of the five moves for 40 seconds, then rest for 20 seconds. Repeat the sequence one more time.