Weightlifting grandmother trains in the gym more than 16 hours a week

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Mary Duffy, 71, spends around 20 hours a week pumping iron and exercising, and has more than 30 state and world records to her name

Joan MacDonald (@trainwithjoan) • Instagram photos and videos

Pull - Matt Foreman, Olympic Weightlifting Articles

Grandmother breaks national, world records in powerlifting - CBS News

Amy Reast The Independent

Despite Lacking Prior Experience, 80-YO Powerlifting Grandma Pulls

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Weights - latest news, breaking stories and comment - The Independent

For the majority of people, it takes 130 quality hours to get fit

Meet The Powerlifting Grandma, And Train Like Her!