Swinging arms with an expander

Fix the expander at chest level, as shown in the figure. Take the handles of the expander and step back about 1.5 meters. Stretch your arms out in front of you. Hands should be strictly parallel to the floor. The legs during the exercise are shoulder-width apart. This will be your starting position. As you exhale, spread your arms to the sides and hold them in the most tense state for 1 second. The arms may be slightly bent at the elbows. Return to the starting position while inhaling.