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Eight years ago Kylie Frost was given a use it or lose it ultimatum by her physio - start exercising or go and find a wheelchair.
50-year-old Kylie has ankylosing spondylitis, a painful inflammatory arthritis that can make it difficult to walk at times. There is no cure and while exercise doesn't stop the arthritis, it helps with mobility.
Kylie started out doing a couple of days at the pool in the mornings, but it was when a staff member asked her if she was training for something that she thought - maybe I'll give a triathlon a go.
Her own experience with finding a coach and a training programme, proved there was a gap in the market for older people - particularly women - who wanted to take up exercise later in life, but weren't sure how to begin.
She is now a qualified triathlon coach and runs the fast-growing Twisted Sisters group, which - at last count - was supporting 26 women to complete an ocean swimming challenge.
This weekend Kylie is competing in the Tarawera Ultra-trail in Rotorua. But first, she speaks to Kathryn Ryan.
Photo: Supplied by Kylie Frost