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Irvine Welsh's new novel inspired by fitness clubs

21 April 2014 Last updated at 09:51 BST

Author Irvine Welsh has said his latest novel, which is written from a woman's perspective and set in Miami, had its genesis when he saw a fitness trainer berating a woman.

Welsh, who lives in Miami, said that he was "obsessive, compulsive about health and fitness" in an interview with BBC Breakfast.

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