Popsugar Health & Fitness Crossfit 1-Hour CrossFit Workout A CrossFit Coach Crafted This "Power Hour" Workout to Keep Your Muscles Guessing 27 April 2020 by Jenny Sugar View On One Page Photo 7 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 V-Up 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 completes one rep. Do as many v-ups as you can in 45 seconds. Rest for 15 seconds. Previous Next Start Slideshow CrossFitWorkouts