Final answer:
The statement that the development of throwing and overarm striking differs in elbow action is true. Throwing often involves an extended elbow, whereas overarm striking includes elbow rotation.
Step-by-step explanation:
One of the differences between the development of throwing and the development of overarm striking is indeed the elbow action. This statement is true. In the development of throwing skills, such as that of a softball pitcher, the throw is often executed with the arm fully extended, meaning the elbow remains straight throughout the pitch. For example, in fastpitch softball, when the pitcher throws, the arm is extended and the ball can leave the hand at high speeds, such as 139 km/h. In contrast, overarm striking skills, which are used in actions such as hitting a baseball with a bat, involve a different elbow movement where there is a rotation of the forearm about the elbow joint, and other movements are combined to execute the skill.