Smith L, Aggio D, Hamer M
The Cambridge Centre for Sport and Exercise Sciences, Department of Life Sciences, Anglia Ruskin University, Cambridge, UK.
UCL Department of Primary Care and Population Health, UCL Medical School, UK; UCL Physical Activity Research Group, University College London, London, UK.
Pediatr Obes. 2018 Feb;13(2):120-126. doi: 10.1111/ijpo.12222. Epub 2017 May 22.
Children of South Asian decent born in the UK display lower levels of physical activity than British Caucasians although no longitudinal data are available.
We aimed to investigate change in activity levels over 1 year in a diverse ethnic sample of children residing in London, UK.
Children were categorized into ethnic groups (Caucasian/mixed, Black, South Asian). At baseline and 1-year follow-up, children's objective physical activity was monitored (Actigraph accelerometer) for at least 1 day. Mixed models were employed to investigate differences in change in activity levels between ethnic groups.
A total of 281 children were included in the analyses. South Asians had a significantly greater increase in time spent sedentary at follow-up than those of a Caucasian/mixed ethnicity (B [ratio sedentary/wear time] = 0.024; 95% confidence interval 0.003, 0.046). South Asian children recorded lower moderate to vigorous physical activity at baseline (B = -6.5, 95% confidence interval, -11.1, -1.9 min d , p = 0.006) although levels remained relatively stable over follow-up and changes did not differ across ethnic group.
In a diverse ethnic sample of children from inner city London, those of a South Asian ethnicity exhibited a significantly greater increase in sedentary time over a period of 12 months in comparison with Caucasian/mixed and Black children.
在英国出生的南亚裔儿童的身体活动水平低于英国白种人，尽管尚无纵向数据。
我们旨在调查居住在英国伦敦的不同种族儿童样本在1年期间活动水平的变化。
将儿童分为不同种族群体（白种人/混血、黑人、南亚裔）。在基线和1年随访时，使用活动记录仪（Actigraph加速度计）对儿童的客观身体活动进行至少1天的监测。采用混合模型研究不同种族群体之间活动水平变化的差异。
共有281名儿童纳入分析。与白种人/混血儿童相比，南亚裔儿童在随访时久坐时间的增加显著更多（B[久坐时间/佩戴时间比例]=0.024；95%置信区间0.003，0.046）。南亚裔儿童在基线时的中度至剧烈身体活动水平较低（B=-6.5，95%置信区间-11.1，-1.9分钟/天，p=0.006），尽管在随访期间水平相对稳定，且不同种族群体之间的变化无差异。
在伦敦市中心不同种族的儿童样本中，与白种人/混血和黑人儿童相比，南亚裔儿童在12个月内久坐时间的增加显著更多。
