Popsugar Fitness Arm Exercises At-Home Arm and Shoulder Exercises These Are the 42 Most Effective Exercises For Strong Arms and Sculpted Shoulders 3 June, 2020 by Jenny Sugar View On One Page Photo 7 of 42 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Plank and Straight-Arm Kickback Start in a plank position holding a dumbbell in each hand. Open your feet wider than hip width for a stronger base of support. Lift your left arm behind you as high as you can. Bring the left arm back into plank to complete one rep. Previous Next Start Slideshow Arm Exercises