@Article{info:doi/10.2196/15338，作者=“Bort-Roig, Judit and chirvechesp {\'e}rez, Emilia and Garcia-Cuy{\ ' a}s, Francesc and Dowd, Kieran P and Puig-Ribera, Anna”，标题=“使用W@W-App和MetaWearC传感器监测办公室员工的坐姿、站立和行走:验证研究”，期刊=“JMIR Mhealth Uhealth”，年=“2020”，月=“8”，日=“4”，卷=“8”，数=“8”，页=“e15338”，关键词=“有效性”;自我监控;久坐不动的行为;身体活动;智能手机;移动电话;背景:用积极的工作取代职业性的久坐时间对办公室员工的健康有几个好处。手机和运动传感器可以提供职业坐姿行为的实时客观信息。然而，使用移动健康(mHealth)设备量化和修改职业久坐时间的有效性和可行性尚不清楚。目的:本研究的目的是验证新的Walk@Work-Application (W@W-App)——包括一个连接在大腿上的外部运动传感器(MetaWearC)——用于测量自由生活条件下的职业坐姿、站立和行走，而activPAL3M是目前基于设备的姿势行为测量的金标准。 Methods: In total, 20 office workers (16 [80{\%}] females; mean age 39.5, SD 8.1 years) downloaded the W@W-App to their mobile phones, wore a MetaWearC sensor attached to their thigh using a tailored band, and wore the activPAL3M for 3-8 consecutive working hours. Differences between both measures were examined using paired-samples t tests and Wilcoxon signed-rank tests. Agreement between measures was examined using concordance correlation coefficients (CCCs), 95{\%} CIs, Bland-Altman plots (mean bias, 95{\%} limits of agreement [LoA]), and equivalence testing techniques. Results: The median recording time for the W@W-App+MetaWearC and the activPAL3M was 237.5 (SD 132.8) minutes and 240.0 (SD 127.5) minutes, respectively (P<.001). No significant differences between sitting (P=.53), standing (P=.12), and stepping times (P=.61) were identified. The CCC identified substantial agreement between both measures for sitting (CCC=0.98, 95{\%} CI 0.96-0.99), moderate agreement for standing (CCC=0.93, 95{\%} CI 0.81-0.97), and poor agreement for stepping (CCC=0.74, 95{\%} CI 0.47-0.88). Bland-Altman plots indicated that sitting time (mean bias --1.66 minutes, 95{\%} LoA --30.37 to 20.05) and standing time (mean bias --4.85 minutes, 95{\%} LoA --31.31 to 21.62) were underreported. For stepping time, a positive mean bias of 1.15 minutes (95{\%} LoA --15.11 to 17.41) was identified. Equivalence testing demonstrated that the estimates obtained from the W@W-App+MetaWearC and the activPAL3M were considered equivalent for all variables excluding stepping time. Conclusions: The W@W-App+MetaWearC is a low-cost tool with acceptable levels of accuracy that can objectively quantify occupational sitting, standing, stationary, and upright times in real time. Due to the availability of real-time feedback for users, this tool can positively influence occupational sitting behaviors in future interventions. Trial Registration: ClinicalTrials.gov NCT04092738; https://clinicaltrials.gov/ct2/show/NCT04092738 ", issn="2291-5222", doi="10.2196/15338", url="https://mhealth.www.mybigtv.com/2020/8/e15338", url="https://doi.org/10.2196/15338", url="http://www.ncbi.nlm.nih.gov/pubmed/32459625" }