Popsugar Health & Fitness Workouts Ab Workout With Weights Ignite Your Abdominal Muscles With This 4-Move Core-Strengthening Workout 14 January 2019 by Tamara Pridgett View On One Page Photo 3 of 4 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Medicine Ball Slam Stand with your feet shoulder-width apart, with a 10-pound 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. Complete 15 reps. Previous Next Start Slideshow Trainer TipsIntermediate WorkoutsCore ExercisesAb Workouts10-Minute WorkoutsStrength TrainingWorkouts