Popsugar Health & Fitness Arm Exercises Best Arm Exercises If Today Is Arm Day, Here Are 59 of the Most Effective Moves You Can Do 21 March 2018 by Jenny Sugar View On One Page Photo 16 of 59 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 16 One-Legged Push-Up Start on your hands and knees. Extend your left leg behind you so it's parallel with the floor. Engage your abs. With your leg extended, bend your elbows, lowering your torso toward the floor while keeping your left heel in line with your left hip. Straighten your elbows to push yourself away from the floor, completing one rep. Previous Next Start Slideshow Arm ExercisesStrength TrainingWorkouts