@Article{信息:doi 10.2196 / / jmir。1298，作者="Bexelius, Christin和L{\"o}f, Marie和Sandin, Sven和Trolle Lagerros, Ylva和Forsum, Elisabet和Litton, Jan- eric "，标题="使用手机进行身体活动的测量:使用标准方法的验证"，期刊="J Med Internet Res"，年="2010"，月="1"，日="29"，体积="12"，数字="1"，页数="e2"，关键词="身体活动，手机，流行病学方法，数据收集"，摘要="背景:"体育活动与降低许多慢性疾病的风险有关。在大型流行病学研究中收集的关于身体活动的数据往往基于纸质问卷。这些问卷的效度存在争议，需要更有效的方法。目的:本研究评估身体活动水平(PAL)的重复测量，以及使用基于java的问卷下载到手机上收集这些数据的可行性。将所得数据与基于双标记水法和间接量热法(PALref)的参考估计值进行比较。方法:使用一个基于java的手机应用程序，22名女性在14天的时间里每天回答两个简短的问题，报告她们的身体活动(PALcell)。结果与双标记水法和间接量热法(PALref)的参考数据进行了比较。研究结果还与女性在14天实验结束时完成的两份常规纸质问卷(PALquest1和PALquest2)评估的身体活动水平进行了比较。 PALcell, PALquest1, and PALquest2 were compared with PALref using the Bland and Altman procedure. Results: The mean difference between PALcell and PALref was small (0.014) with narrow limits of agreement (2SD = 0.30). Compared with PALref, the mean difference was also small for PALquest1 and PALquest2 (0.004 and 0.07, respectively); however, the limits of agreement were wider (PALquest1, 2SD = 0.50 and PALquest2, 2SD = 0.90). The test for trend was statistically significant for PALquest1 (slope of regression line = 0.79, P = .04) as well as for PALquest2 (slope of regression line = 1.58, P < .001) when compared with PALref. Conclusion: A Java-based physical activity questionnaire administered daily using cell phones produced PAL estimates that agreed well with PAL reference values. Furthermore, the limits of agreement between PAL obtained using cell phones, and reference values were narrower than for corresponding estimates obtained using paper questionnaires. Java-based questionnaires downloaded onto cell phones may be a feasible and cost-effective method of data collection for large-scale prospective studies of physical activity. ", issn="1438-8871", doi="10.2196/jmir.1298", url="//www.mybigtv.com/2010/1/e2/", url="https://doi.org/10.2196/jmir.1298", url="http://www.ncbi.nlm.nih.gov/pubmed/20118036" }