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This exercise primarily develops the deltoid muscles.

Stand straight with your chest out and hold dumbbells in both hands. Lift the dumbbells to the side to shoulder height. Hold the dumbbells on the side for 1-2 seconds then lower them back to the starting position and repeat the exercise. Your elbow should be slightly bent but your wrist and hand should be the extension of your forearm. When lifting the dumbbells, pay attention that at the highest point of the motion, the little fingers should be higher than the thumbs that is on your palms should slightly face backward.