Popsugar Fitness Workouts Short Plank Workout Squeeze In This 3-Minute Jumping Plank Workout April 3, 2016 by Jenny Sugar View On One Page Photo 2 of 4 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Plank Jacks Hold plank position and begin doing jumping jacks with your legs. Hop them wide, then hop them together. Jump as quickly as you want. Keep plank jacking for 20 seconds. Previous Next Start Slideshow WorkoutsPlank