In just a few weeks, you can get stronger, sleeker toned arms that you’ll be proud to show off. By Marla Horenbein. If tightening and toning the arms is on your list of summer goals, try adding these exercises to your fitness regimen three times a week. I recommend performing them with 3-5 pound dumbbells. This is the simplest workout on this list but it is also one of the most effective if you intend to burn arm fat fast in one week… Perform 5 sets every day to lose chubby arms in one week. 4. Working your shoulders help to burn arm fat and strengthen not just your arm muscles, but also the connection between arms and torso. 7 Simple Workout Moves That Will Get You Sexy, Toned Arms In A Week. Arm Rotation. You’ll want to do these exercises in today’s video at least two times a week minimum and three times a week … Bonus: If you want strong, toned arms, you need to pay attention to your deltoids (shoulders). this link is to an external site that may or may not meet accessibility guidelines. You May Like This: 10 Best Shoulder Exercises to Tone and Lose Arm Fat Fast . You'll be strutting around sleeveless with Cameron Diaz-like guns in no time. Tone Your Arms … All you have to do is get busy! Tone-Up Exercise: Sexier Arms in 3 Weeks.