Meta-analysis of internet-delivered interventions to increase physical activity levels.
Meta-analysis of internet-delivered interventions to increase physical activity levels.
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DOI：
10.1186/1479-5868-9-52
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发表时间：
2012-04-30
期刊：
影响因子：
--
通讯作者：
Mummery WK
中科院分区：
文献类型：
--
作者：
Davies CA;Spence JC;Vandelanotte C;Caperchione CM;Mummery WK
许多互联网提供的身体活动行为改变计划已经开发和评估。然而，需要进一步的证据来确定这些干预措施的总体有效性。本综述的目的是评估互联网提供的干预措施，以增加身体活动的有效性，同时也检查干预主持人的影响。一项系统性检索策略确定了Pubmed、Proquest、Scopus、PsychINFO、CINHAL和Sport Discuss（1990年1月至2011年6月）中以英语发表的相关研究。符合条件的研究需要包括互联网提供的干预措施，针对成年人群，测量和目标身体活动作为结果变量，并包括一个没有收到互联网提供的材料的对照组。研究由两名研究者独立编码。基于固定效应模型合并总体效应量。进行同质性分析和随后的探索性调节分析。共确定了34篇文章纳入。互联网提供的干预措施对身体活动的总体平均影响为d = 0.14（p = 0.00）。固定效应分析显示研究间存在显著异质性（Q = 73.75; p = 0.00）。调节变量，如较大的样本量，筛选基线体力活动水平和纳入教育成分显着增加干预的有效性。荟萃分析的结果支持提供互联网提供的干预措施，在身体活动产生积极的变化，但效果大小很小。互联网提供的干预措施是否能够在长期身体活动中产生有意义的变化仍不清楚。
Many internet-delivered physical activity behaviour change programs have been developed and evaluated. However, further evidence is required to ascertain the overall effectiveness of such interventions. The objective of the present review was to evaluate the effectiveness of internet-delivered interventions to increase physical activity, whilst also examining the effect of intervention moderators. A systematic search strategy identified relevant studies published in the English-language from Pubmed, Proquest, Scopus, PsychINFO, CINHAL, and Sport Discuss (January 1990 – June 2011). Eligible studies were required to include an internet-delivered intervention, target an adult population, measure and target physical activity as an outcome variable, and include a comparison group that did not receive internet-delivered materials. Studies were coded independently by two investigators. Overall effect sizes were combined based on the fixed effect model. Homogeneity and subsequent exploratory moderator analysis was undertaken. A total of 34 articles were identified for inclusion. The overall mean effect of internet-delivered interventions on physical activity was d = 0.14 (p = 0.00). Fixed-effect analysis revealed significant heterogeneity across studies (Q = 73.75; p = 0.00). Moderating variables such as larger sample size, screening for baseline physical activity levels and the inclusion of educational components significantly increased intervention effectiveness. Results of the meta-analysis support the delivery of internet-delivered interventions in producing positive changes in physical activity, however effect sizes were small. The ability of internet-delivered interventions to produce meaningful change in long-term physical activity remains unclear.
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