TY -的盟Bexelius Christin AU - Lof玛丽盟——Sandin斯文AU - Trolle Lagerros,精灵城盟——Forsum Elisabet盟利顿,Jan-Eric PY - 2010 DA - 2010/1/29 TI -措施使用手机的身体活动:使用标准方法验证乔- J地中海互联网Res SP - e2六世- 12 - 1 KW -体育活动,手机,流行病学方法,数据收集AB -背景:身体活动与许多慢性疾病的风险降低相关。在大型流行病学研究中收集的体育活动数据通常基于纸质问卷。这些问卷的有效性是有争议的，需要更有效的方法。目的:本研究评估了身体活动水平(PAL)的重复测量，以及使用下载到手机上的基于java的问卷收集此类数据的可行性。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:使用基于java的手机应用程序，22名女性在14天内每天回答两个简短的问题(PALcell)，报告她们的身体活动。结果与双标记水法和间接量热法(PALref)得到的参考数据进行了比较。研究结果还与女性在14天期间结束时完成的两份定期纸质问卷(PALquest1和PALquest2)评估的身体活动水平进行了比较。使用Bland和Altman程序将PALcell、PALquest1和PALquest2与PALref进行比较。结果:PALcell与PALref的平均差异较小(0.014)，一致性限窄(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. SN - 1438-8871 UR - //www.mybigtv.com/2010/1/e2/ UR - https://doi.org/10.2196/jmir.1298 UR - http://www.ncbi.nlm.nih.gov/pubmed/20118036 DO - 10.2196/jmir.1298 ID - info:doi/10.2196/jmir.1298 ER -