What is the function of an arm guard in archery?

The primary function of an arm guard in archery is to protect the bow arm from the bowstring during the release of an arrow. When an archer releases the arrow, the bowstring moves forward rapidly, and without some form of protection, the string can come into contact with the inside of the archer's arm. This can lead to discomfort or even injury. The arm guard acts as a barrier that prevents the bowstring from making direct contact with the skin, allowing the archer to focus on their aim and technique instead of worrying about potential injury.

While the other options touch on aspects related to archery, they don’t accurately describe the direct and essential role of an arm guard. For example, assisting in holding the bow correctly or improving grip are influenced by the technique or design of the bow itself and the archer's training, not the arm guard. Similarly, keeping the bow at a proper angle pertains more to the archer's stance and shooting form rather than the function of the arm guard.