The term "runner" refers to the part beneath a sled, snowmobile, or other vehicle designed to glide over snow. This idea has been examined by writers such as Roy Norton, who illustrated the rhythmic movement of runners in a sled, and Walt Whitman, who highlighted the physical nature of human runners.
Although the main purpose of a runner is to facilitate motion over snow, literary works frequently employ the term metaphorically to symbolize athletes and their journeys, as seen in references to races, endurance, and competition. The dual application—technical and symbolic—demonstrates how the concept connects mechanical design with human determination.