Amy Van Dyken became the first American athlete to win four gold medals at a single Olympic Games when she clinched four titles at Atlanta 1996. An ATV accident in 2014 left the swim star paralysed from the waist down. "Everyone has something. So I just think, limitations are what you put on yourself," she said to us ahead of the Paralympics in Tokyo. "...where you start from and some of the bad things that have happened to you, it gets you to where you're going to eventually, hopefully be and grow as a human."