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AA new study has shown that people with arthritis can avoid a disability with less than half of the recommended weekly exercise.
Even a short brisk walk of less than 10 minutes a day is enough to keep the elderly standing, which reduces the risk of disability by 85%.
At present, the NHS recommends adults to do two and a half hours of moderate physical activity each week – about 21 minutes a day, but many people feel unable to reach the target and do not do anything.
The new study from Northwestern University in Illinois followed for four years 1,500 adults suffering from pain, stiffness caused by arthritis in the knees, hips, ankles or feet, but not being disabled at the beginning of the study.
Their physical activity was monitored during the period by means of accelerometers.
Four years after the start of the study, 24% of adults not having an hour of intense physical activity walked too slowly to cross the street safely, and 23% reported problems for perform their morning routine.
"It's less than 10 minutes a day for people to maintain their independence. It's very feasible, "said Dr. Dorothy Dunlop, senior author, professor of preventive medicine at the Feinberg School of Medicine at Northwestern University.
"This minimum threshold can motivate inactive older adults to engage in the path of a physically active lifestyle with the wide range of health benefits induced by physical activity." "
Nearly nine million people suffer from osteoarthritis in Britain.
The new study showed that one hour of physical activity reduced the risk of mobility disability – walking too slowly to cross a street safely or less than one meter per second – 85%, as well as the risk of daily activity of disability, difficulty working in the morning nearly 45% of routine tasks, such as walking in a room, washing and clothing.
"We hope this new discovery in public health will motivate an intermediate goal of physical activity," added Professor Dunlop.
"One hour a week is a stepping stone for people who are currently inactive. People can start working for that.
"Our goal was to see what kind of activity would help people stay without disabilities."
The study will be published April 1 in the American Journal of Preventive Medicine.
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