Movement Physiology Research Laboratory, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand Medical School, Parktown, Johannesburg, South Africa (Mr Dunning, Drs McVeigh, Goble, Meiring); and School of Occupational Therapy and Social Work, Faculty of Health Sciences, Curtin University, Kent Street, Bentley, Western Australia, Australia (Dr McVeigh).
J Occup Environ Med. 2018 Aug;60(8):760-767. doi: 10.1097/JOM.0000000000001327.
The aim of this study was to determine whether mobile phone text messages could modify objectively measured sedentary behavior and cardiometabolic health in office workers.
Nine males and 12 females [mean (SD): 27.5 (5.7) years, 23.8 (2.8) kg/m] were assigned to a control (CON) or intervention (PROMPT) group. PROMPT received an activity-promoting text message during office hours. Participants wore an actiGraph and activPAL accelerometer for 7 days during and after the intervention. Blood pressure, lipid, and metabolic profiles were measured before and after the intervention.
PROMPT sat less [mean (95% confidence interval, 95% CI): 4.9 (4.4 to 5.4) hours/day] than CON [6.0 (5.5 to 6.4) hours/day; P = 0.04] during the message-receiving period. There was no difference between groups after the intervention and for the other activity variables. There were no changes in cardiometabolic health markers following the intervention.
Sitting time was lower during the message-receiving period, but the difference between groups was no longer apparent after the intervention.
本研究旨在确定手机短信能否改变上班族的久坐行为和心脏代谢健康的客观指标。
9 名男性和 12 名女性（平均[标准差]：27.5[5.7]岁，23.8[2.8]kg/m²）被分配到对照组（CON）或干预组（PROMPT）。PROMPT 在工作时间收到促进活动的短信。参与者在干预期间和之后的 7 天内佩戴 actiGraph 和 activPAL 加速度计。在干预前后测量血压、血脂和代谢指标。
与 CON 组[6.0（5.5 至 6.4）小时/天]相比，PROMPT 组在接收短信期间的坐姿时间明显更少[平均（95%置信区间，95%CI）：4.9（4.4 至 5.4）小时/天；P=0.04]。干预后两组之间以及其他活动变量之间没有差异。干预后心脏代谢健康标志物没有变化。
在接收短信期间，坐姿时间降低，但干预后两组之间的差异不再明显。
