Popsugar Fitness Workouts What Are the Best Arm Exercises? Arm Day Will Leave You Sore as Hell If You Include These 25 Moves June 23, 2018 by Jenny Sugar View On One Page Photo 17 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 17 Ball Slams Stand with your feet shoulder-width distant apart with the medicine ball on the floor in front of you. Squat down and pick up the medicine ball, keeping your head up and trying not to round the spine. Stand up, lifting the medicine ball above your head, fully extending the arms straight above you. Forcefully slam the ball down on the floor as hard as you can. If the ball is light enough, catch the ball as it bounces slightly off the floor. This counts as one rep. Previous Next Start Slideshow WorkoutsStrength TrainingArm Exercises