Diabetes Research Centre, Leicester General Hospital, University of Leicester, Leicester, UK.
National Institute for Health Research (NIHR) Leicester Biomedical Research Centre (BRC), University Hospitals of Leicester NHS Trust and the University of Leicester, Leicester, UK.
J Sports Sci. 2023 Mar;41(4):333-341. doi: 10.1080/02640414.2023.2209762. Epub 2023 May 14.
To determine whether the association between self-reported walking pace and all-cause mortality (ACM) persists across categories of accelerometer-assessed physical activity status. Data from 93,709 UK Biobank participants were included. Physical activity was assessed using wrist-worn accelerometers for 7-days. Participants accumulating <150 min/week moderate-to-vigorous- activity were classed as "inactive", ≥150 min/week moderate (≥3 METs) activity as "somewhat active" excluding those with ≥150 min/week upper-moderate-to-vigorous activity (≥4.3 METs), who were classed as "high-active". Over a 6.3 y (median) follow-up, 2,173 deaths occurred. More than half of slow walkers were "inactive", but only 26% of steady and 12% of brisk walkers. Associations between walking pace and ACM were consistent with those for activity. "High active" brisk walkers had the lowest risk of ACM (Hazard Ratio (HR) 0.22; 95% CI: 0.17,0.28), relative to "inactive" slow walkers. Within those classed as "inactive", steady (HR 0.54; 0.46,0.64) and brisk walkers (HR 0.42; 0.34,0.52) had lower risk than slow walkers. In conclusion, self-reported walking pace was associated with accelerometer-assessed physical activity with both exposures having similar associations with ACM. "inactive", steady, and brisk walkers had lower ACM risk than slow walkers. The pattern was similar for "High active" participants. Overall, "High active" brisk walkers had lowest risk.
为了确定自我报告的行走速度与全因死亡率（ACM）之间的关联是否在加速度计评估的身体活动状态的类别中持续存在。纳入了 93709 名英国生物库参与者的数据。使用腕戴式加速度计评估了 7 天的身体活动情况。每周积累<150 分钟中等到剧烈活动的参与者被归类为“不活跃”，每周积累≥150 分钟（≥3 METs）的活动被归类为“有点活跃”，不包括每周积累≥150 分钟的中等到剧烈活动（≥4.3 METs）的参与者，这些参与者被归类为“高活跃”。在 6.3 年（中位数）的随访中，发生了 2173 例死亡。超过一半的慢走者为“不活跃”，但只有 26%的稳定行走者和 12%的轻快行走者。行走速度与 ACM 之间的关联与活动的关联一致。与“不活跃”的慢走者相比，“高活跃”的轻快行走者发生 ACM 的风险最低（风险比（HR）0.22；95%置信区间：0.17，0.28）。在被归类为“不活跃”的人群中，稳定（HR 0.54；0.46，0.64）和轻快（HR 0.42；0.34，0.52）的行走者发生 ACM 的风险低于慢走者。总之，自我报告的行走速度与加速度计评估的身体活动相关，两种暴露与 ACM 均具有相似的关联。与慢走者相比，“不活跃”、稳定和轻快的行走者发生 ACM 的风险较低。对于“高活跃”参与者，模式相似。总体而言，“高活跃”的轻快行走者风险最低。
