What position does the hand assume during pronation?

During pronation, the hand rotates so that the palm faces downward. This rotation involves the forearm, where the radius bone crosses over the ulna. When in a prone position, the thumb typically points toward the body or the rear. This action is commonly seen when performing tasks like typing on a keyboard or pushing down on a surface. Understanding this movement is important for recognizing how the upper limb functions during various activities, especially in clinical settings where hand positioning can affect assessments and treatment.