It’s not just step count: walking speed matters too

News summary

A study of 64,743 UK Biobank participants found that different combinations of daily step volume and stepping intensity were associated with lower mortality risk. UK Biobank is a large UK research resource that follows volunteers' health data over time. This does not mean step count is unimportant or that different strategies are proven equivalent: the study was observational and assessed associations rather than causation.

Among people taking fewer than 5,000 steps per day, higher stepping intensity was associated with lower all-cause mortality risk. The 5,000–7,500-step group also showed lower risk at lower cadences. Overall, the 7,500–10,000-step group had the lowest all-cause mortality risk, with the lowest estimate around 100 steps per minute.

Daily activity need not be judged by a single 10,000-step target. If adding more steps is difficult, walking somewhat faster may raise activity intensity; if a faster pace is difficult, gradually adding steps may be another option. These are flexible activity strategies, not proven equivalent prescriptions.

This was an observational study and cannot establish causation. Activity was measured by wrist accelerometry during a defined measurement period and may have changed during follow-up; residual confounding and reverse causation may also contribute. Peak 30-minute cadence is the average cadence across the day’s 30 highest-cadence minutes, which are not necessarily consecutive.