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 19 of 42 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 19 Up-and-Down Plank Come into a plank position with your arms and legs straight. Your hands should be underneath your shoulders and your feet hips-width distance apart. Keep your torso parallel to the floor, and lower your right forearm to the mat and then the left, coming into elbow plank. Then step your right hand back onto the mat, and then the left, pushing yourself back up to plank position. This completes one push-up walk. Previous Next Start Slideshow Arm Exercises