Generally, girls have no strength in their arms; Boys have big arms. You may often see boys practice horizontal bar stretching upwards, because boys have the power to stretch their arms. Girls basically don't do this action because their arms have no strength.

Generally, boys have thick arms and girls have thin arms. It can also be judged that the arm strength difference between men and women is still relatively large under normal circumstances.

Boys prefer to practice the upper body when shaping, especially the arms, such as the muscles of the arms, which will make boys look more fit. What girls practice more in the upper body is the vest line and buttocks at the waist.