Currie admitted that she was initially reluctant about signing up for the competition because she was nervous after sustaining the injury.
"Six months ago I was in a plaster cast," she said. "I broke my ankle, both bits, so I have ten screws in my right ankle. And there was a point during the late spring when I thought, 'I'm going to walk with a limp all my life - this is bad news'."
Currie continued: "It's been a lot of effort to get back on my feet and then this invitation came up. [I thought,] 'Don't be ridiculous - how can somebody like that do Strictly Come Dancing?' But I thought about it and took some advice."
Currie explained that she wants to encourage other people who had been injured to get moving again.
"There's probably quite a lot of people out there, especially slightly older people, who have had an injury," she said. "You get quite risk averse and you worry about even walking down three steps, never mind a catwalk or whatever.
"You sit and you put on weight and you kind of give up a bit. And I thought, 'Maybe if I can encourage a few other people' - 'If she can do it with a broken ankle, maybe I can do it'."
Currie also revealed that she is not afraid of standing up to the judges if she is unhappy with their comments.
"If they start shouting at me I will simply remember that Margaret Thatcher shouted at me and she didn't stop me," she said. "They will get as good back as they throw at me."
The Strictly Come Dancing launch show will air on Saturday at 6.10pm on BBC One.
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