Popsugar Fitness Hiit 7-Minute Workout This 7-Minute Workout Helps Target Belly Fat and Build Muscle 12 October, 2016 by Leta Shy 9 Shares View On One Page Photo 9 of 13 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 9 High Knees/Running in Place Time for more cardio. March (also called high knees) or run in place for 30 seconds. 0 previous images -18 more images Previous Next Start Slideshow HIITInterval Workouts10-Minute WorkoutsIntermediate WorkoutsFull-Body WorkoutsHealth NewsStrength Training