Duke University School of Nursing, Durham, NC; Center for Health Services Research in Primary Care, Durham Veterans Affairs Medical Center, Durham, NC.
Am J Med. 2013 Nov;126(11):1002-9. doi: 10.1016/j.amjmed.2013.07.001. Epub 2013 Sep 16.
Using regulatory focus theory, an intervention of daily weight loss-sustaining messages was developed and tested for acceptability, feasibility, and efficacy on helping people sustain weight loss.
Participants (n = 120) were randomized to a promotion, prevention, or an attention-control text message group after completion of a weight loss program. Participants completed baseline assessments, and reported their weight at 1 and 3 months postbaseline.
Participants found the message content and intervention acceptable and valuable. A minimum of one message per day delivered at approximately 8:00 am was deemed the optimal delivery time and frequency. The sustained weight loss rate at month 3 for the control, promotion, and prevention groups was 90%, 95%, and 100%, respectively. Medium-to-large effects were observed for the promotion and prevention groups at month 1 and for prevention at month 3 relative to controls. The mean weight loss for promotion and prevention was 15 pounds, compared with 10 in the controls at month 3.
A clinically significant decrease in mean weight, higher rate of sustained weight loss, and medium-to-large effects on sustained weight loss occurred in the promotion and prevention interventions. Tools such as this text message-based intervention that are constructed and guided by evidence-based content and theoretical constructs show promise in helping people sustain healthy behaviors that can lead to improved health outcomes.
本研究采用监管焦点理论，开发并测试了一种日常维持体重减轻的信息干预措施，以帮助人们维持体重减轻。
参与者（n=120）在完成体重减轻计划后被随机分配到促进组、预防组或注意力控制短信组。参与者完成基线评估，并在基线后 1 个月和 3 个月报告体重。
参与者认为信息内容和干预措施是可以接受和有价值的。每天至少发送一条消息，大约在上午 8 点发送，被认为是最佳的发送时间和频率。控制组、促进组和预防组在第 3 个月的持续减重率分别为 90%、95%和 100%。与对照组相比，促进组和预防组在第 1 个月和预防组在第 3 个月的效果显著。促进组和预防组在第 3 个月的平均减重为 15 磅，而对照组为 10 磅。
促进组和预防组的平均体重下降幅度更大，持续减重率更高，对持续减重的影响更大。这种基于短信的干预措施是根据循证内容和理论构建和指导的，具有很大的潜力，可以帮助人们维持健康的行为，从而改善健康结果。
