Popsugar Fitness Workouts Cardio Ab Exercises Do Any of These 9 Moves to Blast Calories and Tone Your Abs at the Same Time June 6, 2017 by Dominique Michelle Astorino View On One Page Photo 8 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Knees and Toes Start with two high knees, bringing your right knee to your left hand, then your left knee to your right hand. Now rotate your right knee slightly outward to bring your right ankle to your left hand, then your left ankle to your right hand. Continue in this alternating pattern. Previous Next Start Slideshow WorkoutsCardio WorkoutsCardioBodyweight ExercisesGIF ExercisesAb Exercises