How fast you walk may matter almost as much as how many steps you take, according to a large study of U.K. adults wearing wrist-based activity trackers, which found that brisk walking offset a low daily step count when it came to mortality risk. The findings, published in the British Journal of Sports Medicine, challenge the simplicity of step-count-only fitness targets like the familiar 10,000-steps-a-day benchmark.
Researchers analyzed UK Biobank data from more than 100,000 middle-aged adults who wore activity monitors for seven consecutive days in 2013-2015, then tracked their health records for roughly eight years. Of 64,743 participants in the all-cause mortality analysis, 1,697 died during follow-up; a related analysis of 70,075 participants recorded 502 cardiovascular deaths. Rather than looking only at total daily steps, the team also measured "stepping intensity," or cadence, to see how pace and volume combined to predict risk.
People who logged fewer than 5,000 steps a day, a level generally considered sedentary, still had meaningfully lower mortality risk if they moved briskly, at 80 or more steps per minute, during their most active stretches, roughly on par with people who took 5,000 to 7,500 slower steps. The lowest mortality risk of all, though, was seen in people who logged 7,500 to 10,000 steps daily regardless of pace, suggesting volume still carries some advantage once counts climb that high.
A correlation, not proof that pace changes outcomes
The 10,000-step target has no strong grounding in exercise science; it traces to a 1960s Japanese pedometer marketing campaign rather than a clinical trial. Researchers have increasingly turned to wearable-device data to test what step patterns are actually linked to health outcomes, and this analysis adds pace as a variable worth tracking alongside volume. Exercise physiologists have offered a plausible biological reason pace might matter independent of distance: faster walking places greater demand on the heart, lungs and muscles, which over time can improve cardiovascular fitness, as the University at Buffalo's Nikhil Satchidanand has put it in separate commentary on walking-pace research.
This is an observational study, and as such, can't establish cause and effect.
British Journal of Sports Medicine, study summary, September 2026
That caveat covers an important possibility: people who are already fitter may simply be more likely to walk briskly in the first place, rather than brisk walking itself extending their lives, a reverse-causation problem that dogs exercise epidemiology built on a single week of tracker data. The study also could not capture changes in activity over the eight years of follow-up, or fully account for underlying illness that might explain both slower walking and earlier death.
The authors say the results, detailed in the full paper in the British Journal of Sports Medicine, could eventually support more flexible walking guidance for people who struggle to hit step targets because of time or mobility limits, by suggesting that picking up the pace on shorter walks may be a reasonable substitute. No health agency has changed official guidance on one cohort study, and the researchers, summarized in a BMJ Group release accompanying the paper, called for randomized trials testing whether deliberately increasing pace changes outcomes, rather than just observing who already walks fast. Further coverage is available via an independent summary of the research.
