Popsugar Fitness Workouts Best Stretches For Marathon Training Injury Prevention Workout For Runners August 28, 2018 by Anna Renderer View On One Page Photo 4 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Reverse Plank Start in a seated position. With your feet flat on the floor, bend your knees and place your hands behind your back, directly under your shoulders. Supporting your body with your arms and feet, lift your hips toward the sky, pressing through your heels. Try to fully extend your hips so that your body is completely straight, in a reverse plank. Slowly bring your butt back to the floor, repeat for 10 reps. Previous Next Start Slideshow WorkoutsRunningMarathon TrainingStretchesMarathonsInjury Prevention