Popsugar Fitness Workouts Kelsey Wells 10-Minute Ab Workout You're Going to Be Sore For Days With This Trainer's 10-Minute Ab-Burning Circuit August 22, 2019 by Tamara Pridgett View On One Page Photo 1 of 4 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Spiderman Plank Start in a center plank position on your hands and toes with your body in a straight line. Bring your right knee outside and around towards your right elbow, keeping your body in a straight line. Return your foot back to the mat and repeat on the opposite side. Repeat for 40 seconds, then take 10 seconds of rest. Previous Next Start Slideshow WorkoutsStrength TrainingAb WorkoutsCore ExercisesKelsey WellsTrainer TipsBeginner Workouts10-Minute Workouts