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 3 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Elbow Plank With Leg Lift Start in an elbow plank. Lift your left foot about six inches off the ground, keeping your pelvis parallel to the floor. Hold for 15 seconds, then lower the leg. Repeat this with your right leg for 15 seconds, keeping your torso stable. Previous Next Start Slideshow Bodyweight WorkoutsCore ExercisesAb Workouts5-Minute WorkoutsPlankStrength TrainingWorkouts