Arm circles can really work on toning the muscles in your shoulder and arm—biceps and triceps. They also work on your upper back muscles. If done along with other workouts that target the arm muscles, arm circles can also help reduce the buildup of fat in your arms.

Arm circles can help to tone and strengthen the muscles in your arms, especially the deltoids (shoulder muscles) and the triceps (back of the upper arm). However, they should be used as part of a full exercise routine that targets all areas of the body for overall fitness.

Arm circles is a simple warm-up that involves moving your arms in a circular motion, says fitness expert Aminder Singh of Team Aminder fame. Doing arm circles can help you in toning your arms, but adding other workouts, especially strength training exercises, is a more effective way to get rid of flabby arms.

In addition to warming up your shoulder joints, arm circles increase circulation to you arms, fingers and shoulders. If you hold a set of lightweight dumbbells in your hands during arm circles, you can optimize the toning effect of the exercise. You'll notice the muscle tone when your excess arm fat reduces.