Popsugar Health & Fitness Dumbbell Workouts Running and Dumbbell CrossFit Workout Burn Fat and Tone Your Body (Mostly Your Butt) With This CrossFit Workout 27 June 2018 by Jenny Sugar View On One Page Photo 1 of 3 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Push Press Hold a dumbbell in each hand just above the shoulders, palms facing in. Bend the knees slightly and as you straighten your legs, use the force from your legs to press the dumbbells above you, straightening the arms. Bend the elbows coming back to the starting position to complete one rep. Do 21 reps. Previous Next Start Slideshow Dumbbell WorkoutsIntermediate WorkoutsCrossFitRunningArm ExercisesButt ExercisesStrength TrainingWorkouts