Face guards protect the face of baseball players. They are intended for batters and for catchers to protect their faces. Chest guards are for baseball players to protect batters from chest injury due to ball impact. Ball impact was the most common cause of baseball related death in children. Hockey face protectors protect hockey players from injury from the puck or hockey stick.
Athletic supporter protects male players who participate in contact sports.
Besides not wearing the proper protective equipment, there are other ways that one can put themselves out of action while exercising or participating in sports. For example, basketball players need extra ankle support for all of the lateral movements, and runners need extra cushioning for shock absorption. It is important to have a sports specific shoe if you participate in a specific activity. In order to protect your skin and eyes from sun damage, it is important to wear sunscreen and sun glasses. This applies for hot or cold weather.