Popsugar Fitness Workouts Beginner HIIT Workout New to High-Intensity Interval Training? This No-Equipment Workout Is Only 20 Minutes June 20, 2018 by Jenny Sugar View On One Page Photo 3 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 High-Knee Skips Skip in place by hopping on your right leg while bringing the left knee up toward your chest. Engage your abs as the knee comes toward your chest. Switch legs and keep skipping while pumping your arms. If skipping is too hard, just raise and lower the knees without jumping. Previous Next Start Slideshow WorkoutsCardio WorkoutsCardioBodyweight ExercisesHIITHIIT WorkoutsNo-Equipment Cardio WorkoutsBeginner Workouts20-Minute Workouts