Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore.
Department of Health Sciences, University of York, York, UK.
BMC Public Health. 2018 Apr 23;18(1):539. doi: 10.1186/s12889-018-5457-y.
Accelerometer measured physical activity (PA) studies particularly in non-western populations are lacking. Therefore, this study investigated stepping activity in a multi-ethnic urban Asian population.
Adult participants from the Singapore Health Study 2 consented to accelerometer activity monitoring for 7-consecutive days. Mean daily step count, peak stepping intensity (i.e. cadence) over 1-min, 30-min and 60-min and time spent in each cadence band: 0 (non-movement), 1-19, 20-39, 40-59, 60-79, 80-99 and ≥ 100 steps/minute (moderate to vigorous PA) were calculated.
A total of 713 participants (42% male, mean age 47.8 years) were included. Overall, the mean daily step count was 7549. Mean daily step count was significantly lower in Indians (7083 adjusted p = 0.02) but not Malays 7140 (adjusted p = 0.052) compared to Chinese (7745 steps). The proportion of Malays, Indians, and Chinese achieving < 5000 daily steps was 26%, 23% and 14%, respectively (p < 0.01). Regardless of ethnicity, approximately half of the recorded time was spent undertaking 0-steps/minute (7.9 h).
Greater promotion of brisk walking is required in light of the low step volume and pace observed in this multi-ethnic Asian population. Ethnic differences in stepping activity were also identified which indicates a need for targeted ethnic specific health promotion interventions.
在非西方人群中，加速计测量的身体活动（PA）研究尤其缺乏。因此，本研究调查了一个多民族城市亚洲人群的步数活动。
来自新加坡健康研究 2 的成年参与者同意进行 7 天连续的加速计活动监测。计算了平均每日步数、1 分钟、30 分钟和 60 分钟的最高步频强度（即步速）以及每个步速带的时间：0（无运动）、1-19、20-39、40-59、60-79、80-99 和 ≥ 100 步/分钟（中等到剧烈 PA）。
共有 713 名参与者（42%为男性，平均年龄为 47.8 岁）被纳入研究。总体而言，平均每日步数为 7549 步。与中国人（7745 步）相比，印度人（调整后 p=0.02）和马来人（调整后 p=0.052）的平均每日步数明显较低。马来人、印度人和中国人每日步数<5000 步的比例分别为 26%、23%和 14%（p<0.01）。无论种族如何，大约一半的记录时间处于 0 步/分钟（7.9 小时）。
鉴于观察到的这个多民族亚洲人群的低步幅和步速，需要大力提倡轻快步行。还发现了步频活动的种族差异，这表明需要针对特定种族的健康促进干预措施。
