Popsugar Fitness Workouts Up Ladder CrossFit Workout This 10-Minute Workout Is Just 2 Moves, but It'll Have You on the Floor June 26, 2018 by Jenny Sugar View On One Page Photo 2 of 4 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Plyometrics: High Knees Run in place while lifting your knees high to the level of your waist. Engage your abs as the knee comes up. Pump your arms to warm up your upper body. Previous Next Start Slideshow WorkoutsStrength TrainingCardio WorkoutsCrossFitBeginner Workouts10-Minute Workouts