TY - JOUR AU - Bort-Roig, Judit AU - chirvechs - prez, Emilia AU - Garcia-Cuyàs, Francesc AU - Dowd, Kieran P AU - Puig-Ribera, Anna PY - 2020 DA - 2020/8/4 TI -基于W@W-App和MetaWearC传感器的职业性坐、站、走监测:验证性研究JO - JMIR Mhealth Uhealth SP - e15338 VL - 8 IS - 8 KW -效度KW -自我监测KW -久坐行为KW -身体活动KW -智能手机KW -移动电话KW -基于设备的测量AB -背景:用积极的任务取代职业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) -包括一个附加在大腿上的外部运动传感器(MetaWearC) -用于测量在自由生活条件下的职业坐姿，站立和行走，而activPAL3M是目前的黄金标准，基于设备的姿势行为测量。方法:共20例上班族，其中女性16例[80%];平均年龄39.5岁，SD 8.1岁)下载W@W-App到他们的手机上，用定制的手环将MetaWearC传感器固定在大腿上，并连续3-8小时佩戴activPAL3M。使用配对样本t检验和Wilcoxon符号秩检验来检验两种测量方法之间的差异。采用一致性相关系数(CCCs)、95% ci、Bland-Altman图(平均偏倚、95%一致性限[LoA])和等效检验技术检查测量之间的一致性。结果:W@W-App+MetaWearC和activPAL3M的中位记录时间分别为237.5 (SD 132.8)分钟和240.0 (SD 127.5)分钟(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 SN - 2291-5222 UR - https://mhealth.www.mybigtv.com/2020/8/e15338 UR - https://doi.org/10.2196/15338 UR - http://www.ncbi.nlm.nih.gov/pubmed/32459625 DO - 10.2196/15338 ID - info:doi/10.2196/15338 ER -