A randomized trial comparing structured and lifestyle goals in an internet-mediated walking program for people with type 2 diabetes
A randomized trial comparing structured and lifestyle goals in an internet-mediated walking program for people with type 2 diabetes
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DOI：
10.1186/1479-5868-4-59
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发表时间：
2007-11-16
影响因子：
8.7
通讯作者：
Piette, John D.
中科院分区：
文献类型：
--
作者：
Richardson, Caroline R.;Mehari, Kathleen S.;Piette, John D.
背景：大多数2型糖尿病患者不经常锻炼。基于计步器的步行干预可以有所帮助；然而，以计步器为基础的干预措施，只针对每天累计的总步数，可能不会产生与指定最少运动时间和强度的体育活动计划相同的健康益处。方法：这项随机试验比较了两种目标设定策略：1)生活方式目标，即每天累计步数；2)结构化目标，即以每分钟至少60步的速度持续10分钟或更长时间的步行。我们试图确定哪种目标设定策略在增加步骤方面更有效。参与者是久坐不动的2型糖尿病成年人。所有参与者：佩戴内置USB接口的增强型计步器；将详细的带时间戳的步数数据上传到一个名为“迈向健康”（Stepping Up to Health）的网站；在为期六周的干预过程中，他们收到了自动的步数反馈、自动计算的目标和量身定制的激励信息。只有自动目标计算和步数反馈在两组之间有所不同。研究的主要结果是先前定义的步行次数（以每分钟至少60步的速度持续至少10分钟或更长时间）在基线和干预结束之间的增加。结果：35名参与者被随机分配，30名（86%）完成了初步研究。两组患者步数均显著增加，但组间差异无统计学意义。在完成研究的人中，大约每天增加了1921 +/- 2729步。那些接受生活方式目标的人对干预更满意（p = 0.006），并且比那些接受结构化目标的人更经常佩戴计步器（p < 0.001）。结论：在为期六周的干预中，生活方式目标组的参与者取得了与结构化目标组相当的跑步步数增加，相当于每天增加近一英里的中等强度的跑步活动。以计步器为基础的步行计划，强调累计的总步数，更容易被参与者接受，并且在增加中等强度的身体活动方面，与使用结构化目标的计划一样有效。试验注册：NCT00151021。
Background: The majority of individuals with type 2 diabetes do not exercise regularly. Pedometer-based walking interventions can help; however, pedometer-based interventions targeting only total daily accumulated steps might not yield the same health benefits as physical activity programs specifying a minimum duration and intensity of physical activity bouts.Methods: This pilot randomized trial compared two goal-setting strategies: 1) lifestyle goals targeting total daily accumulated step counts and 2) structured goals targeting bout steps defined as walking that lasts for 10 minutes or longer at a pace of at least 60 steps per minute. We sought to determine which goal-setting strategy was more effective at increasing bout steps. Participants were sedentary adults with type 2 diabetes. All participants: wore enhanced pedometers with embedded USB ports; uploaded detailed, time-stamped step-count data to a website called Stepping Up to Health; and received automated step-count feedback, automatically calculated goals, and tailored motivational messages throughout the six-week intervention. Only the automated goal calculations and step-count feedback differed between the two groups. The primary outcome of interest was increase in steps taken during the previously defined bouts of walking (lasting at least 10 minutes or longer at a pace of at least 60 steps per minute) between baseline and end of the intervention.Results: Thirty-five participants were randomized and 30 (86%) completed the pilot study. Both groups significantly increased bout steps, but there was no statistically significant difference between groups. Among study completers, bout steps increased by 1921 +/- 2729 steps a day. Those who received lifestyle goals were more satisfied with the intervention (p = 0.006) and wore the pedometer more often (p < 0.001) than those who received structured goals.Conclusion: In this six-week intervention, Lifestyle Goals group participants achieved increases in bout steps comparable to the increases seen in the Structured Goals group, representing almost a mile a day of additional moderate intensity bout activity. Pedometer-based walking programs that emphasize total accumulated step counts are more acceptable to participants and are as effective at increasing moderate intensity bouts of physical activity as programs that use structured goals.Trial registration: NCT00151021.