Texting to Increase Adolescent Physical Activity: Feasibility Assessment.
Texting to Increase Adolescent Physical Activity: Feasibility Assessment.
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DOI：
10.5993/ajhb.40.4.9
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发表时间：
2016-07
影响因子：
2.3
通讯作者：
Liu Y
中科院分区：
文献类型：
--
作者：
Thompson D;Cantu D;Ramirez B;Cullen KW;Baranowski T;Mendoza J;Anderson B;Jago R;Rodgers W;Liu Y
可行性试验评估一项行为改变计划是否值得进行明确的试验评估。本文报告了一种干预措施的可行性，该干预措施由基于自我决定理论的短信、计步器和目标提示组成，旨在提高青少年的身体活动量。
采用了具有基线和研究结束后即刻评估的四组随机设计。对各组（计步器组；计步器 + 目标提示组；计步器 + 目标提示 + 基于理论的短信组；无治疗对照组）进行了系统的改变，以评估干预成分对客观测量的身体活动（即ActiGraph测量）的累加效应。这项为期12周的干预的主要结果是计划的可行性。还检查了平均每日步数和中等到高强度身体活动分钟数的变化。对一部分参与者进行的干预后研究考察了对计划的反应。
参与者（N = 160）性别均匀分布，大多为14 - 15岁，具有不同的种族/民族背景。可行性标准得到满足。流失率低于2%。除对照组外，所有组的平均每日步数和中等到高强度身体活动都有适度增加。参与者对干预措施反应积极。
由计步器、基于理论的短信和目标提示组成的干预措施是一种对青少年促进身体活动可行且可接受的方法。
Feasibility trials assess whether a behavior change program warrants a definite trial evaluation. This paper reports the feasibility of an intervention consisting of Self Determination Theory-informed text messages, pedometers, and goal prompts to increase adolescent physical activity. A four-group randomized design with baseline and immediate post-study assessments was used. Groups (pedometer; pedometer + goal prompt; pedometer + goal prompt + theory-informed texts; no-treatment control) were systematically varied to assess the additive effect of intervention components on objectively-measured physical activity (ie, ActiGraph). The primary outcome of the 12-week intervention was program feasibility. Changes in average daily step counts and minutes of moderate-to-vigorous physical activity were also examined. Post-intervention research with a sub-set of participants examined program reactions. Participants (N = 160) were evenly split by sex, mostly 14-15 years old, and of diverse race/ethnicity. Feasibility criteria were met. Attrition rate was less than two percent. Modest increases in average daily step counts and moderate-to-vigorous physical activity were observed in all groups except the control group. Participants reported positive reactions to the intervention. An intervention consisting of pedometers, theory-informed texts, and goal prompts, is a feasible and acceptable method for promoting physical activity to adolescents.