However, in skateboarding competition, some special lighting devices are sometimes used to increase the visual effect of the competition, such as setting colors or flashing lights around the skateboarding venue. These lighting devices are usually supplied by electricity, but they are not directly connected to the skateboard body, and will not affect the players or skateboards through current or electromagnetic fields.
To sum up, the skateboard itself is uncharged, but the electrically driven lighting equipment may be used in the competition, which is not directly related to the skateboard itself and will not affect the players through current or electromagnetic fields.