A Facebook-based Weight Loss Programme for Obese Adults in Hong Kong
Effects of a Facebook-based Weight Loss Programme for Obese Adults in Hong Kong
研究概览
详细说明
Obese individuals often are at higher risk for developing non-communicable diseases such as diabetes and cardiovascular disease. The regular physical activity, healthy diet and social support have been shown to be beneficial for weight loss.
This is a two-arm parallel design randomized controlled trial for 6 months. Participants who completed the baseline assessment will be randomly allocated, after stratified by gender, to either a control group or Facebook-based intervention group. The control group will receive information on healthy eating, physical activity, obesity and cancer via three government printed health pamphlets. In addition to the government health pamphlets, the intervention group will receive a programme delivered through Facebook.
The interventions include participation in a private research group on Facebook for health education, self monitoring and social support. Participants will receive 12 weekly lessons related to nutrition, physical activity, Chinese food therapy, acupressure, weight loss. A registered nutritionist and a registered Chinese medicine practitioner will join the Facebook group as health partners. Both of them are also registered nurses.
Data collection will be carried out at baseline, 3 months and 6 months. Each time, both groups will complete online questionnaires and attend in-person anthropometric measurements
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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Hong Kong、香港
- The Hong Kong Polytechnic 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:
- university full-time employees;
- age 18 to 60 years,
- BMI of 25 to 40 kg/m2,
- have access to Internet and Facebook;
- able to communicate in both English and Chinese at F.5 secondary school level or above.
- agree to communicate with Internet, email, Facebook group and respect privacy.
Exclusion Criteria:
- Smoker;
- an unstable medical or mental status;
- history of myocardial infarction or stroke, or cancer in the past 5 years;
- orthopedic or joint problems that would prohibit exercise;
- in treatment for alcohol or drug dependency;
- an eating disorder;
- pregnant, breastfeeding, or planning on becoming pregnant within the next 6 months;
- use of medication that might affect body weight;
- a recent weight loss of more than 4.5 kg in the previous 6 months;
- currently participating in a weight loss program;
- organic obesity;
- unable to attend assessments or increase physical activity.
学习计划
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：单身的
武器和干预
参与者组/臂 |
干预/治疗 |
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实验性的：Intervention Group
Lifestyle Intervention: The interventions include participation in a private research group on Facebook for health education, self monitoring and social support. Participants will receive 12 weekly lessons related to nutrition, physical activity, Chinese food therapy, acupressure, weight loss. A registered nutritionist and a registered Chinese medicine practitioner will join the Facebook group as health partners. Both of them are also registered nurses. Besides the Facebook contents, the participants will also receive government printed health information on healthy eating, physical activity, obesity and cancers. |
East-meets-West Lifestyle Intervention elements include nutrition and exercise from the Western perspective, food therapy and acupressure from the Traditional Chinese Medicine perspective, self-monitoring, and motivational videos of successful stories from working colleagues.
The group participants in the Facebook are encouraged to post their health behaviors and questions, self-monitor, pledge for weight loss, seek social support and interact with health partners and other participants.
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无干预：Control Group
The participants randomized into the Control Group will only receive government printed health information on healthy eating, physical activity, obesity and cancers.
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Changes in body weight
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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Weights will be taken in light clothes without shoes using a digital scale
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in Body Mass Index
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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Height will be taken at baseline using a wall-mounted stadiometer.
BMI will be calculated as weight (kg)/height (m2)
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in waist circumference
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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Waist circumference will be measured by using an inelastic tape measure
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Measures are done in three time points: baseline, 3 months and 6 months
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
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Changes in Stages of Change
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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A 5-item questionnaire will be used to categorize participants into stages of change (pre-contemplation, contemplation, preparation, action, maintenance)
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in weight self-efficacy
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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Self-efficacy for weight loss will be assessed by using a 20-item Weight Efficacy Lifestyle Questionnaire (WEL).
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in physical activity self-efficacy
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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A questionnaire of perceived confidence to engage in physical activity under a variety of circumstances on a 5-point Likert scale will be used.
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in weight decisional balance
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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A 20-item questionnaire of perceived pros and cons of weight loss on a 5-point Likert scale.
The balance of the two scores >0 indicate more advantages than disadvantages to weight loss
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in social support
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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A questionnaire will be used to measure the perceived support and sabotage from friends and family for healthy eating and physical activity
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in dietary intake of fruits and vegetables
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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A questionnaire will be used to assess self-reported intake of fruits and vegetables in terms of portion size and frequency
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in physical activity
大体时间：Measures are done in three time points: baseline, 3 months and 6 months
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The International Physical Activity Questionnaire will be used to assess the changes in physical activity
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Measures are done in three time points: baseline, 3 months and 6 months
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合作者和调查者
调查人员
- 首席研究员：WanChaw SHAE、The Hong Kong Polytechnic University
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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