Popsugar Fitness Workouts Plank Exercises For Abs For a Leaner Belly, These 35 Plank Variations Are a Must (Plus 1 Bonus Video!) August 15, 2018 by Jenny Sugar View On One Page Photo 13 of 37 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 13 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 five seconds, then lower the leg. Try the lift with your right leg. This completes one rep. Previous Next Start Slideshow WorkoutsPlankArm ExercisesAb Exercises