Effects of a computer-based, telephone-counseling system on physical activity
Effects of a computer-based, telephone-counseling system on physical activity
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DOI：
10.1016/s0749-3797(02)00441-5
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发表时间：
2002-08-01
影响因子：
5.5
通讯作者：
Gillman, MW
中科院分区：
文献类型：
--
作者：
Pinto, BM;Friedman, R;Gillman, MW
背景资料：人们越来越有兴趣制定干预措施，以促进不涉及与卫生专业人员面对面接触的身体活动（PA）。我们开发了一个完全自动化的PA咨询系统（电话连接通信，TLC-PA），通过telephones.Design提供：一个随机对照试验，298名成年人，久坐不动的成员（平均年龄，45.9岁，72%的妇女，45%的白色，和45%的非洲裔美国人）的多站点医疗实践。对照组（TLC-Eat）接受所有的自动干预促进健康饮食，这也是通过telephone.Intervention交付：TLC-PA促进中等强度PA（MI-PA）的跨理论模型的行为改变和社会认知理论的基础上。该系统可供参与者使用6个月。主要结果：MI-PA的能量消耗，符合MI-PA建议的参与者比例，以及PA的动机准备。测量：基线，3个月和6个月时PA行为和动机准备的自我报告。结果：三个月大的时候，意向性治疗分析显示，与TLC-Eat组相比，TLC-PA组更可能符合MI或高强度PA（VI-PA）的建议（TLC-PA=26% vs TLC-Eat= 19.6%，p=0.04）。在研究完成者中，TLC-PA受试者报告MI-PA组每日千卡能量消耗显著更高（2.3 kcal/kg/d vs 2.0 kcal/kg/d，p=0.02）;更大比例的人满足了MI-或VI-PA的建议（31.2% vs 21.3%，p=0.02），并且比TLC-Eat受试者处于更高级的动机准备阶段（TLC-PA=52.5% vs TLC-Eat= 42.2%，p=0.04）。结果在6个月时未保持。TLC-PA用户的比例显着下降，在干预periods.Conclusions：一个完全自动化的咨询系统有积极的短期影响PA久坐的成年人。效果缺乏维持可能是由于继续使用该系统的参与者数量减少。
Background: There is increasing interest in developing interventions to promote physical activity (PA) that do not involve face-to-face contact with health professionals. We developed a fully automated PA counseling system (telephone-linked communication, TLC-PA) that was delivered via telephone.Design: A randomized, controlled trial with 298 adult, sedentary members (mean age, 45.9 years; 72% women; 45% white; and 45% African American) of a multi-site medical practice. The comparison group (TLC-Eat) received all automated intervention promoting healthy eating, which was also delivered via telephone.Intervention: The TLC-PA promoted moderate-intensity PA (MI-PA) based on the transtheoretical model of behavior change and social cognitive theory. The system was available to participants for 6 months.Main Outcomes: Energy expenditure in MI-PA, proportion of participants who met recommendations for MI-PA, and motivational readiness for PA.Measures: Self-reports of PA behavior and motivational readiness at baseline, 3 months, and 6 months.Results: At 3 months, intention-to-treat analyses showed that the TLC-PA group was more likely to meet recommendations for MI- or vigorous-intensity PA (VI-PA) compared to the TLC-Eat group (TLC-PA=26% vs TLC-Eat=19.6%, p=0.04). Among study completers, TLC-PA subjects reported significantly higher daily kilocalorie energy expenditure in MI-PA (2.3 kcal/kg/d vs 2.0 kcal/kg/d, p=0.02); a larger proportion met, recommendations for MI- or VI-PA (31.2% vs 21.3%, p=0.02) and were in more advanced stages of motivational readiness than TLC-Eat subjects (TLC-PA=52.5% vs TLC-Eat=42.2%, p=0.04). Results were not maintained at 6 months. The proportion of TLC-PA users decreased significantly over the intervention period.Conclusions: A fully automated counseling system had positive short-term effects on PA among sedentary adults. Lack of maintenance of effects may be due to a decrease in the number of participants who continued to use the system.