Just an hour of weekly walking works wonders: Study
Just one hour a week of brisk walking staves-off disability in older adults with arthritis pain, or aching or stiffness in a knee, hip, ankle or foot, a recent study suggests.
"This is less than 10 minutes a day for people to maintain their independence. It's very doable. 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," said Dorothy Dunlop, lead author of the study.
The study was published in the American Journal of Preventive Medicine.
An estimated 14 million older adults in the U.S. have symptomatic knee osteoarthritis, which is the most common form of osteoarthritis. Approximately two in five people with osteoarthritis -- most of whom have it in their lower joints -- develop disability limitations.
The study found an hour of weekly moderate-to-vigorous physical activity allowed older adults to maintain their ability to perform daily tasks like getting dressed or cross a street before a traffic light walk signal changed.
The weekly hour of exercise reduced their risk of mobility disability (walking too slowly to safely cross a street or less than one meter per second) by 85 percent and their risk of activities of daily living disability (difficulty performing morning routine tasks such as walking across a room, bathing and dressing) by almost 45 percent.
Four years after the start of the study, 24 percent of adults who did not get the weekly hour of brisk physical activity was walking too slowly to safely cross the street, and 23 percent reported problems performing their morning routine.
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