A mother is one of thousands hoping to raise money in the Brighton Marathon this Sunday.
Five-year-old Austin has Duchenne Muscular Dystrophy.
The condition is inherited and mostly affects boys, causing muscle weakness.
Austin does not let the disease stop him from playing with his toys or spending time with family.
Austin's mum, Max Foster, is going to run in the Brighton Marathon on Sunday.
Max wants raise money and hopes to spread awareness of Duchenne Muscular Dystrophy.
She is running the marathon on behalf of Harrison's Fund.
Harrison's fund is a charity which raises money for research into Duchenne.
Austin says he "couldn't be more proud" of his mum.
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