Popsugar Fitness Workouts 100-Rep Arm Workout Get Strong, Defined Arms With This 100-Rep Arm Workout June 25, 2018 by Jenny Sugar View On One Page Photo 5 of 10 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Overhead Shoulder Press Hold a dumbbell in each hand just above the shoulders, palms facing in. Straighten the arms above you. Bend the elbows coming back to the starting position to complete one rep. Do 10 reps total. Previous Next Start Slideshow WorkoutsStrength Training10-Minute WorkoutsIntermediate WorkoutsArm Workouts