The 25-year-old said she is feeling “stressed and nervous” ahead of her BBC ballroom debut which kicks off one week before the ITU World Triathlon Grand Final in Australia.
Steadman said the sequins are on the backburner, telling hosts Matt Baker and Alex Jones: “I’ve got two things going on and I lost out on a world title last year by four seconds and this year I’m going for it.”
Steadman – who was born without a complete right arm – said she isn’t planning on wearing a prosthetic during the show, joking it may “fly off” with all the spinning.
She said she is a keen salsa dancer but has never done ballroom and is hoping some dad dancing will help her secure points from the judges if she can’t remember the routines.
“My housemate is Colombian and we went to a few classes a few years ago because I needed a hobby outside of sport,” she said. “I got the basics and I went to Colombia last year so it might get me somewhere on the show. I’ve never done any ballroom.
“I’m a bit nervous but I can revert back to dad dancing if it all gets too much.”
Steadman is the second Paralympic athlete to star on the show following on from Jonnie Peacock last year.
She is the second star to be unveiled today after Lee Ryan was announced on Loose Women.
Other names gearing up to make their debut on the BBC ballroom show include Katie Piper, Faye Tozer, Danny John-Jules, Graeme Swann, Vick Hope, Stacey Dooley, Kate Silverton, Dr Ranj Singh, Joe Sugg, Ashley Roberts and Seann Walsh.
Strictly Come Dancing returns to BBC One later this year