Pace as important as 10000 steps for health – Science Daily


10,000 steps a day is the ‘sweet spot’ for lowered risk of disease and death, but how fast you walk could be just as important according to new research.
The studies, published in the journals JAMA Internal Medicine and JAMA Neurology, monitored 78, 500 adults with wearable trackers — making these the largest studies to objectively track step count in relation to health outcomes.
The researchers from the University of Sydney, Australia and University of Southern Denmark found lowered risk of dementia, heart disease, cancer and death are associated with achieving 10,000 steps a day. However, a faster stepping pace like a power walk showed benefits above and beyond the number of steps achieved.
“The take-home message here is that for protective health benefits people could not only ideally aim for 10,000 steps a day but also aim to walk faster,” said co-lead author Dr Matthew Ahmadi, Research Fellow at the University of Sydney’s Charles Perkins Centre and Faculty of Medicine and Health.
‘For less active individuals, our study also demonstrates that as low as 3,800 steps a day can cut the risk of dementia by 25 percent,” said co-lead author Associate Professor Borja del Pozo Cruz from the University of Southern Denmark and senior researcher in health at the University of Cadiz.
Key points:
“Step count is easily understood and widely used by the public to track activity levels thanks to the growing popularity of fitness trackers and apps, but rarely do people think about the pace of their steps,” said senior author Emmanuel Stamatakis, Professor of Physical Activity, Lifestyle and Population Health at the University of Sydney.
“Findings from these studies could inform the first formal step-based physical activity guidelines and help develop effective public health programs aimed at preventing chronic disease.”
How was the study conducted?
The study drew on data from UK Biobank to link up step count data from 78,500 UK adults aged 40 to 79 years with health outcomes 7 years on. Participants wore a wrist accelerometer to measure physical activity over a period of 7 days (minimum 3 days, including a weekend day and monitoring during sleep periods).
With ethics consent, this information was linked with participants’ health records through several data sources and registries including inpatient hospital, primary care records, and cancer and death registries.
Only those who were free of cardiovascular disease, cancer or dementia at baseline and disease-free in the first two years of the study were included in the final assessment. Statistical adjustments were also made for confounders, such as the fact that people who do more steps generally walk faster.
The researchers note that the studies are observational, meaning they cannot show direct cause and effect, however, note the strong and consistent associations seen across both studies at the population level.
“The size and scope of these studies using wrist-worn trackers makes it the most robust evidence to date suggesting that 10,000 steps a day is the sweet spot for health benefits and walking faster is associated with additional benefits,” said Dr Matthew Ahmadi.
“Going forward more research with longer-term use of trackers will shed more light on the health benefits associated with certain levels and intensity of daily stepping.”
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