Popsugar Fitness Workouts 25-Minute Total-Body HIIT Workout Burn Fat With Nicci Robinson's 25-Minute, Total-Body HIIT Home Workout January 13, 2021 by Samantha Brodsky View On One Page Photo 2 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Circuit 1, Exercise 2: Alternating Jump Lunge Stand with your feet together and a slight bend in your knees. Jump up into the air, and land with your left leg forward and both knees bent at about 90-degree angles. This is your lunge. Push off with both feet, and switch your legs in the air to hop into a lunge with your right leg in front and left leg in back. This counts as one rep. Keep alternating for 30 seconds. If these are too hard, jump your feet together in between the lunges instead, or try alternating forward and backward lunges. Previous Next Start Slideshow WorkoutsCardio WorkoutsBodyweight ExercisesBodyweight WorkoutsHIIT WorkoutsGIF ExercisesFull-Body Workouts20-Minute Workouts