Popsugar Health & Fitness Bodyweight Workouts Try This 3-Minute Plank Series From a Firefighter I Tried My Firefighter Boyfriend's 3-Minute Plank Series, and It Made My Core Quake 19 October 2020 by Samantha Brodsky View On One Page Photo 2 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Elbow Plank With Reach Begin in an elbow plank with your feet set slightly wider than your hips. Keeping your torso stable, reach your left arm forward and hold for 15 seconds. Repeat on the other side for 15 seconds. Previous Next Start Slideshow Bodyweight WorkoutsCore ExercisesAb Workouts5-Minute WorkoutsPlankStrength TrainingWorkouts