Physical activity patterns of just one or two sessions a week may be enough to reduce deaths from all causes, cardiovascular disease and cancer, regardless of adherence to exercise guidelines, new research reveals.
The finding reported today in JAMA Internal Medicine suggests that less frequent bouts of activity, which might fit more easily into a busy lifestyle, offer significant health benefits, even in the obese and those with medical risk factors.
“It is very encouraging news that being physically active on just one or two occasions per week is associated with a lower risk of death, even among people who do some activity but don’t quite meet recommended exercise levels,” said the study’s senior author, Associate Professor Emmanuel Stamatakis from the University of Sydney.
“However, for optimal health benefits from physical activity it is always advisable to meet and exceed the physical activity recommendations.”
Regular physical activity is associated with lower risks of death from all causes, cardiovascular disease and cancer, and has long been recommended to control weight, cholesterol, and blood pressure. The World Health Organization recommends that adults do at least 150 minutes per week of moderate-intensity activity, or at least 75 minutes per week of vigorous-intensity activity, or equivalent combinations.
But research is yet to establish how the frequency and total weekly dose of activity might best be combined to achieve health benefits. For example, individuals could meet current guidelines by doing 30 minutes of moderate-intensity physical activity five days of the week or 75 minutes of vigorous-intensity physical activity on just one day of the week.
Those who do all their exercise on one or two days of the week are known as ‘weekend warriors’.
It is very encouraging news that being physically active on just one or two occasions per week is associated with a lower risk of death.
Compared to those who reported no physical activity, all-cause mortality risk in the insufficiently active was 31 percent lower, 30 percent lower in weekend warriors and 35 percent lower in the regularly active.
Compared to with those who reported no physical activity, CVD mortality risk in the insufficiently active was 37 percent lower, 41 percent lower in weekend warriors and 41 percent lower in the regularly active.
Compared with those who reported no physical activity, cancer mortality risk in the insufficiently was 14 percent lower, 18 percent lower in weekend warriors and 21 percent lower in the regularly active.
“Compared to inactive people, the results reveal that the insufficiently active, weekend warriors and people with regular physical activity patterns had reduced risks of all-cause, CVD and cancer mortality,” says Stamatakis, who holds appointments at the University of Sydney’s School of Public Health, The Charles Perkins Centre and Faculty of Health Sciences.
“This finding persisted after adjusting for potential confounders, prevalent chronic diseases and excluding those who died in the first two years of the study.
“These results mean that ‘weekend warriors’ and other leisure-time physical activity patterns characterised by one or two sessions per week may provide beneficial health outcomes event when they fall short of physical activity guidelines.”
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