 Para @-@ snowboarding classification is the classification system for para @-@ snowboarding . The sport originally called Adaptive Snowboard is now practiced by hundreds of athletes around the world . The International Paralympic Committee ( IPC ) defines two classes : SB @-@ LL for athletes with a physical impairment affecting one or both legs , and SB @-@ UL for athletes with a physical impairment affecting one or both arms who compete standing . The sport made its official Winter Paralympic debut in the 2014 Winter Paralympics in Sochi , Russia . 
