Popsugar Health & Fitness Fast Fitness 10-Minute Core and Abs Workout This 10-Minute Core Workout Will Leave Your Abs Worked 15 November 2018 by Susi May View On One Page Photo 1 of 10 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Plank to Runner's Lunge If you run, this stretch will feel great on the front of your hips. Start in plank position and bring your left foot to the outside of your left hand. Bend your elbows slowly to deepen the stretch. Return your left leg back to plank position and repeat on the other side. Keep alternating sides for 30 seconds. Previous Next Start Slideshow Fast FitnessFast Fitness WorkoutsBodyweight ExercisesBodyweight WorkoutsIntermediate WorkoutsAb Workouts10-Minute WorkoutsStrength TrainingWorkouts