7,000 steps a day could be enough to improve health, say researchers
The NHS recommends a brisk 10-minute walk every day. Many people aim to walk 10,000 steps, but struggle to achieve it. Now researchers have calculated that even 7,000 steps could be enough to protect health.
Scientists examined data from more than 160,000 adults and found that walking 7,000 steps a day was associated with a reduced risk of a number of serious health conditions and death.
Whereas previous studies have mainly examined the links between step count and heart health or overall death rates, this systematic review and meta analysis, published in the Lancet Public Health, sought to comprehensively examine how taking more steps per day could reduce the risk of a range of other health conditions as well.
Compared with those who walked 2,000 steps a day, the researchers found that achieving the 7,000 daily step target was linked to a 37% reduction in risk of dying from cancer, while the risk was 14% lower for type 2 diabetes, 38% for dementia, 22% depression and 28% for falls respectively. It was also associated with a 25% lower risk of cardiovascular disease and a 47% reduction in overall risk of dying.
Although step count does not measure the quality or intensity of exercise, the findings underscore the importance of being active. There is a 'return on investment' with every additional 1,000 steps taken and even 4,000 steps per day reduced the risk of disease, compared with very low activity levels, the researchers observed.
Although the risk continues to decrease above 7,000 steps, the rate at which it reduces that risk starts to slow. Melody Ding, professor of public health at the University of Sydney and lead author of the research, said that those who already walked 10,000 steps should not go back to 7,000, but that 7,000 was a more practical target for those who were currently inactive.
'Those who are currently active and achieving the 10,000 steps a day, keep up the good work – there is no need to modify your step counts. However, for those of us who are far from achieving the 10,000 targets, getting to 7,000 steps/day offers almost comparable health benefits for the outcomes we examined.'
Responding to the findings, Dr Daniel Bailey, reader in sedentary behaviour and health at Brunel University of London, said the research helped 'debunk the myth that 10,000 steps per day should be the target for optimal health.
'The real-world implications are that people can get health benefits just from small increases in physical activity, such as doing an extra 1,000 steps per day. To achieve the best reductions in risk, aiming for 5,000-7,000 per day can be recommended, which will be more achievable for many people than the unofficial target of 10,000 steps that has been around for many years.'
Dr Andrew Scott, senior lecturer in clinical exercise physiology at the University of Portsmouth, pointed out that not all activity was captured by step counts. 'The steps per day is useful when people's exercise is weight-bearing, however cycling, swimming and rowing are not well-represented by the steps-per-day model.'
June Davison, senior cardiac nurse at the British Heart Foundation, said: 'We know that regular walking is one of the easiest ways to help maintain a healthy lifestyle and reduce your risk of heart disease.
'Adults should aim to build up to a total of 150 minutes of moderate-intensity activity every week, but getting active isn't always easy. Incorporating activity snacks, such as walking while taking phone calls, or taking a brisk 10-minute walk during your lunch break, can all count to reduce your chances of developing heart disease.'
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