Community Based Obesity Prevention Among Blacks
研究概览
详细说明
Long-term promotion of physical activity is necessary to achieve obesity prevention. This represents a particular challenge for our intervention design, as few studies have demonstrated positive long-term physical activity promotion outcomes among Black women. We have demonstrated the utility of pedometers among low income, ethnically diverse populations. The efficacy of pedometer utilization for the prevention of weight gain, however, hinges on long-term utilization of the devices. We hypothesize that recommendation for the step count attainment may affect individual's long-term utilization of pedometers, as well as physical activity levels and BMI.
This study is a 24-week experimental trial to examine whether intervention recommendations promote long-term adherence to a pedometer-based physical activity regimen. A two-group, block design will be used in the proposed study. Eligible women will be randomly assigned to one of two experimental conditions (n=75 per condition): 1) receiving a 10,000 steps/day recommendation and 3 health education sessions or 2) receiving an adaptive recommendation and an obesity prevention intervention. The adaptive step recommendation will update participants' recommended step counts, starting at 7,000 steps/day, then 8,000 steps/day, then finally 10,000 steps/day. Participants in the adaptive recommendation group will be provided with 3 educational sessions and will be asked to report their daily progress on weight maintenance goals via text message.
Participants will be provided pedometers and will be asked to wear them every day of the 24-week trial period.
Assessments (including self-report survey and anthropometric measurements) will be conducted at baseline, 12 weeks and 24 weeks post-baseline.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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North Carolina
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Durham、North Carolina、美国、27705
- Duke University
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Female
- Ages 25 and over
- BMI 25 and over
- English fluency
- Not currently pregnant
- No restrictions to ambulatory activity
Exclusion Criteria:
- Current pregnancy
- Childbearing in the past 12 months
- History of myocardial infarction or stroke in last 2 years
学习计划
研究是如何设计的?
设计细节
- 主要用途:预防
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
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有源比较器:10,000 step/day recommendation
Participants will receive a standard 10,000 step/day recommendation and 3 education sessions: at baseline, at 3 months and at 6 months.
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Participants will receive a standard 10,000 step/day recommendation and 3 education sessions: at baseline, at 3 months and at 6 months.
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实验性的:Adaptive recommendation
The adaptive recommendation will update the participant's recommended step count attainment from 7,000 to 8,000, then 10,000 steps/day.
The SMS-based self-monitoring system will collect three data points each day from participants in this group: 1) total number of steps/d recorded by the pedometer during the previous day (steps/d); 2) performance on 2nd weight loss goal; and 3) performance on 3rd weight loss goal.
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Participants in this group receive 3 education sessions: at baseline, at 3 months and at 6 months.
The adaptive recommendation will update the participant's recommended step count attainment from 7,000 to 8,000, then 10,000 steps/day.
The SMS-based self-monitoring system will collect three data points each day from participants in this group: 1) total number of steps/d recorded by the pedometer during the previous day (steps/d); 2) performance on 2nd weight loss goal; and 3) performance on 3rd weight loss goal.
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研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
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Adherence to the pedometer-based physical activity regimen
大体时间:24 weeks post baseline
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24 weeks post baseline
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次要结果测量
结果测量 |
大体时间 |
---|---|
Change in physical activity
大体时间:24 weeks post baseline
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24 weeks post baseline
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Change in BMI
大体时间:24 weeks post baseline
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24 weeks post baseline
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合作者和调查者
调查人员
- 首席研究员:Gary Bennett, PhD、Duke University
出版物和有用的链接
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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