Time: 30 seconds
How to do it: Step your left leg back into a lunge and bring your arms in front of you. Push off the ground, swinging your arms up to the ceiling, and switch your legs in the air, landing in a lunge with your left leg forward. Continue switching legs as quickly as you can for 30 seconds.
Form tip: Use your arms to help you jump higher, and be sure to land with good lunge form—keeping your knees behind or in line with your toes.
