Two studies demonstrate that older adults may be able to live longer, healthier lives by increasing physical activity that doesn’t have to be strenuous to be effective, according to preliminary research presented at the American Heart Association’s Epidemiology and Prevention | Lifestyle and Cardiometabolic Health Scientific Sessions 2020. The EPI Scientific Sessions, March 3-6 in Phoenix, is a premier global exchange of the latest advances in population-based cardiovascular science for researchers and clinicians.
“Finding a way to physically move more in an activity that suits your capabilities and is pleasurable is extremely important for all people, and especially for older people who may have risk factors for cardiovascular diseases. Physical activities such as brisk walking can help manage high blood pressure and high cholesterol, improve glucose control among many benefits,” said Barry A. Franklin, Ph.D., past chair of both the American Heart Association’s Council on Physical Activity and Metabolism and the National Advocacy Committee, director of preventive cardiology and cardiac rehabilitation at Beaumont Health in Royal Oak, Michigan and professor of internal medicine at Oakland University William Beaumont School of Medicine in Rochester, Michigan.
Higher levels of light physical activity are associated with lower risk of death from any cause (Abstract 31)
Older adults were 67% less likely to die of any cause if they spent at least 150 minutes per week in moderate to vigorous physical activity – a goal recommended by the American Heart Association – compared to those who did not engage in more than 150 minutes per week of moderate to vigorous physical activity.
However, this investigation observed that, among the participants with an average age of 69, physical activity doesn’t have to be strenuous to be effective. The researchers observed that each 30-minute interval of light-intensity physical activities – such as doing household chores or casual walking – was associated with a 20% lower risk of dying from any cause. Conversely, every additional 30-minutes of being sedentary was related to a 32% higher risk of dying from any cause.
“Promoting light-intensity physical activity and reducing sedentary time may be a more practical alternative among older adults,” said Joowon Lee, Ph.D., a researcher at Boston University in Boston.
This investigation evaluated physical activity levels of 1,262 participants from the ongoing Framingham Offspring Study. Participants were an average age of 69 (54% women), and they were instructed to wear a device that objectively measured physical activity for at least 10 hours a day, for at least four days a week between 2011 and 2014.
The strengths of this investigation include its large sample size and the use of a wearable device to objectively measure physical activity. However, the participants of the Framingham Offspring Study are white, so it is unclear if these findings would be consistent for other racial groups.
Co-authors of the study are Nicole L. Spartano, Ph.D.; Ramachandran S. Vasan, M.D. and Vanessa Xanthakis Ph.D. Author disclosures are in the abstract.
This study was supported by the National Heart, Lung, and Blood Institute of the National Institutes of Health.