Popsugar Health & Fitness Fast Fitness 10-Minute Cardio For Abs Carve Your Core With 10 Minutes of Cardio 15 November 2018 by Susi May View On One Page Photo 5 of 10 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Penguin Taps Work your obliques with this lateral crunch — it should make you think of a penguin moving along in a flightless shuffle. Lie on you back with knees bent and hands at your sides. Lift your upper back and shoulder blades off the floor. Bend to the left bringing your left hand to touch your left heel, then switch sides bringing your right hand to your right heel. Continue switching sides for 30 seconds. Previous Next Start Slideshow Fast FitnessFast Fitness WorkoutsBodyweight ExercisesBodyweight WorkoutsIntermediate WorkoutsAb Workouts10-Minute WorkoutsStrength TrainingWorkouts