https://www.sciencedaily.com/releases/2019/04/190401075155.htm

"This is less than 10 minutes a day for people to maintain their independence. It's very doable," said lead author Dorothy Dunlop, professor of preventive medicine at Northwestern University Feinberg School of Medicine. "This minimum threshold may motivate inactive older adults to begin their path toward a physically active lifestyle with the wide range of health benefits promoted by physical activity."

The study will be published April 1 in the American Journal of Preventive Medicine.