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When he was eighteen years old , a terrible accident made Mark Zupan a quadriplegic and changed his life forever . At first , he could hardly move his arms or legs normally . However , after a lot of hard work , he was able to use his arms to move his wheelchair , and he could even stand for a short time and take a few slow steps . Zupan - or Zup to his friends became a quad rugby champion , helping his team win a gold medal in the Paralympic Games . " I dream about running all the time , " he says , " but you can't live in the past . " Today , Zupan frequently gives talks and raises money for his sport and appears in movies and TV shows . Anyone who spends time with him forgets that he's in a wheelchair . He lifts weights at the gym every day , drives a car , and goes to rock concerts . " A lot of people think quadriplegics can't do anything , " he says . To stay in shape , Zupan is careful about his diet and avoids unhealthy and fatty foods . " Just think of me as a human being and an athlete . Because that's who I am . "