1. Begin standing with feet hip-width apart.

2. Step forward with one foot and lower into a lunge position, bending both knees to 90 degrees.

3. Push off the back foot and jump into the air, switching the position of the feet in mid-air.

4. Land with the opposite foot forward in a lunge position, bending both knees to 90 degrees.

5. Repeat for the desired number of repetitions.