Weightlifting grandmother trains in the gym more than 16 hours a

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

I swap clothes and exercise with my grandmother — people get us confused

Meet the powerlifting grandma who can deadlift more than you

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Grandma, 71, Trains in the Gym for 16 Hours a Week, Has Set 30 State and World Records

York County great-grandmother setting powerlifting world records

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