When the palms face forward, the arm position is known as lateral rotation. This is in contrast to medial rotation, where the palms face backward.
The arms can be held in a lateral position at various heights, from shoulder level to overhead. They can also be moved out to the side at an angle, creating a V-shape with the body.
The lateral position of the arms is used in various physical activities, such as swimming, dancing, and yoga. It is also used in certain martial arts and self-defense techniques, where it provides a strong and stable base for punching and blocking.