Popsugar Fitness Crossfit 10-Minute Home Ab Workout You Can Totally Toast Your Core in 10 Minutes With This Home Ab Workout 30 July, 2019 by Jenny Sugar View On One Page Photo 1 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 V-Ups Lie on your back, with your legs and arms extended above the floor. Lift your upper back off the floor, reaching your hands toward your feet with straight legs. This complete one rep. Do as many V-ups as you can in 40 seconds. Rest for 20 seconds. Previous Next Start Slideshow CrossFitAb ExercisesBeginner WorkoutsAb WorkoutsStrength Training