google-site-verification=G3fJ3UM2seXQPi8iHnMlPPFN44aUv2BC5rgqdfOB0ls 10,000 Steps A Day, A Myth
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10,000 Steps A Day, A Myth

Relax - the number to stay healthy is far fewer!


10,000 steps have become the 'gold standard' for many people. This number of steps has become the daily self-goal for many, inspired inter-office competitions, and is responsible for sale growth in step-counting devices. But let's be real, 10,000 is a pretty big number. I, personally, walk my dog a couple of miles twice a day and that will only get me close (most of the time). And what's unfortunate about this number that, for some, proves difficult to obtain, is that it often will lead to an individual ditching the effort all together!

Dr. I-Min Lee, an associate epidemiologist at Brigham and Women’s Hospital, a professor of medicine at Harvard Medical School, and a researcher on physical activity, looked into the basis for 10,000 steps and its validity. The 2019 study, by Dr. Lee and colleagues, in JAMA Internal Medicine, answers two questions about mortality: How many steps a day are associated with lowering the mortality rate? And, does stepping intensity level make a difference in mortality when people take the same number of steps?


~"The supposed activity target was simply made up — most likely by a Japanese clock company"


Where does 10,000 steps a day come from?

Dr. Lee discovered that the origins of the number go back 50 years ago. When, in 1965 a Japanese company, Yamasa Clock and Instrument Co., made a device named Manpo-kei. Manpo-kei literally translates to “10,000 steps meter,” well, most likely in Japanese lettering characters. The name its self was simply a marketing ploy, a tool if you will. The researches for this product comment that “This number has limited scientific basis," an that, “There is limited information on how many daily steps are needed for health.” Not much research to back this golden nugget, but it stuck! The figure has become so ingrained in our health consciousness (it’s often the default setting in fitness trackers). Dr. Lee wanted to find out if there was any scientific basis for health as it pertains to 10,000 steps a day.

Dr. Lee had already been studying the relationship of physical activity and health in older women, and it made sense to stay with that population, she says. "This group tends to be less active, yet health issues that occur more often as people age become more important. The research looked at 16,741 women ages 62 to 101 (average age 72). Between 2011 and 2015, all participants wore tracking devices called accelerometers during waking hours. The central question was: are increased steps associated with fewer deaths?



What did the research find?

Key findings from the study include these:

  • Sedentary women averaged 2,700 steps a day.

  • Women who averaged 4,400 daily steps had a 41% reduction in mortality.

  • Mortality rates progressively improved before leveling off at approximately 7,500 steps per day.

  • There were about nine fewer deaths per 1,000 person-years in the most active group compared with the least active group.

So, if mortality — death — is your major concern, this study suggests you can reap benefits from 7,500 steps a day. That’s 25% fewer steps than the more common goal of 10,000 steps.


What are the study’s limitations?

Dr. Lee notes that this study was designed to look at only two factors. Mortality — not anything related to the quality of life, cognitive functions, or physical conditions. So, this particular study doesn’t tell us how many steps to aim for in order to maximize our quality of life, or help prevent cognitive decline or physical ailments. And intensity, whether the intensity of the steps a person took mattered. As it turns out, it doesn’t.


“Every step counts,” she says.


What’s the bigger picture?

While the scope of this study is narrow, Dr. Lee draws some bigger-picture findings.

  • Exercise recommendations are often measured in time: at least 150 minutes of moderate aerobic activity a week has been the federal government’s recommendation since 2008. People who aren’t active may find it difficult to know exactly how long they’ve been moving. Quantifying exercise by counting steps can feel more doable and less overwhelming.

  • If you’re sedentary, add 2,000 more daily steps so that you average at least 4,400 daily steps. While 2,000 steps equal one mile, it’s not necessary to walk it all at once. Instead, try to take extra steps over the course of each waking hour.

She offers good advice for everyone, particularly those looking for extra steps:

  • Take the stairs instead of the elevator.

  • Park at the first empty space you see, not the one closest to the entrance.

  • Get off the bus one stop earlier than your destination.

  • At home, break up chores. Make more than one trip to bring the dinner dishes into the kitchen, or when bringing groceries in from your car.

“Those little things collectively add up,” Dr. Lee says. “Don’t be intimidated or dissuaded by the 10,000 number.”


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Referenced from~

Arends, B. 2019. Newest science myth: the 10,000-step rule. Marketwatch. retrieved from: https://www.marketwatch.com/story/newest-science-myth-the-10000-step-rule-2019-05-30

Calechman, S. 2019. 10,000 steps a day — or fewer? Harvard health publishing, Harvard Medical School. retrieved from: https://www.health.harvard.edu/blog/10000-steps-a-day-or-fewer-2019071117305




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