Miguel-Berges María L, Reilly John J, Moreno Aznar Luis A, Jiménez-Pavón David
GENUD (Growth, Exercise, Nutrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain.
Instituto Agroalimentario de Aragón (IA2).
Clin J Sport Med. 2018 Jan;28(1):64-75. doi: 10.1097/JSM.0000000000000419.
The present review sought to examine the evidence on the associations between pedometer-determined physical activity and adiposity.
Of 304 potentially eligible articles, 36 were included. A search for observational studies was carried out using Cochrane Library (CENTRAL), the OVID (MEDLINE, Embase, and PsycINFO), EBSCOhost (Sportdiscus), and PEDro database from their commenced to July 2015. Of 304 potentially eligible articles, 36 were included.
Most studies (30/36; 83%) were cross sectional and all used proxies for adiposity, such as body mass index (BMI) or BMI z-score as the outcome measure. Few studies (2/36; 6%) focused on preschool children. There was consistent evidence of negative associations between walking and adiposity; significant negative associations were observed in 72% (26/36) of studies overall.
The present review supports the hypothesis that higher levels of walking are protective against child and adolescent obesity. However, prospective longitudinal studies are warranted; there is a need for more research on younger children and for more "dose-response" evidence.
本综述旨在研究计步器测定的身体活动与肥胖之间关联的证据。
在304篇可能符合条件的文章中，纳入了36篇。使用Cochrane图书馆（CENTRAL）、OVID（MEDLINE、Embase和PsycINFO）、EBSCOhost（Sportdiscus）以及PEDro数据库，从建库至2015年7月进行观察性研究检索。在304篇可能符合条件的文章中，纳入了36篇。
大多数研究（30/36；83%）为横断面研究，且均使用肥胖指标替代物，如体重指数（BMI）或BMI z评分作为结局指标。少数研究（2/36；6%）关注学龄前儿童。有一致的证据表明步行与肥胖之间存在负相关；总体上72%（26/36）的研究观察到显著的负相关。
本综述支持这样的假设，即更多的步行步数对儿童和青少年肥胖具有预防作用。然而，前瞻性纵向研究是必要的；需要对年幼儿童进行更多研究，并获取更多“剂量反应”证据。
