High levels of physical activity of any intensity, whether washing dishes or jogging, can reduce the risk of early death for middle-aged and elderly people, according to a new study.
Conversely, being stuck for 9 hours an hour a day or more (not counting sleep) can increase your risk of dying early
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Researchers led by Professor Wolf Ekelund of the Norwegian School of Sport Sciences in Oslo analyzed studies evaluating physical activity and time-trapped death ("all causing mortality").
Data from eight high-quality studies involving at least 36,383 adults. 40 years (mean age 62) were included. Activity levels were categorized on a quarterly basis, from least to most active, and participants were followed for an average of 5.8 years, Science News reports.
Past guidelines recommend at least 1
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Examples of light activity are walking slowly or light tasks such as cooking or washing dishes. Moderate activity is walking, vacuuming or mowing quickly, while energetic activity involves running, carrying heavy loads or digging.
Researchers note that mortality decreases sharply when activity increases – 300 minutes of mild activity or 24 minutes of moderate intensity per day.
But the lowest levels of activity experience the most deaths.
Researchers say this result "strengthens the view that any physical activity is useful and probably achievable for large populations. ”
This limited study focuses only on residents of the US and Western Europe at least 40 years old, so researchers say a larger study needs more accurate results.
"Developing ways to limit sedentary time and increase activity at each level can significantly improve health and reduce mortality," the researchers conclude.
The study was published earlier this month in the journal BMJ.  »Why it's never too late to start playing sports, says the study
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