High Carbohydrate vs. High Fat Diets in the Treatment of Obesity (JBR 0512)
研究概览
详细说明
Participation in this study requires 2 screening visits to the outpatient clinic, and if participants qualify, 10 inpatient study weeks.
Subjects will be admitted to the Rockefeller University Hospital for the 10 week in-patient phase of the study. The first 2 weeks consist of a weight stabilization period, during which subjects will be required to consume an average American diet. This is followed by the 6 week weight loss period where subjects will be randomized to either a low calorie high carbohydrate or a low calorie high fat/protein diet. On both diets there will be a 50% calorie deficit compared to the weight stabilization period. This will be followed by a 2 week weight maintenance period during which calories will be added to the diet to maintain the new weight. Appropriate adjustments will be made to keep the subject's weight stable.
During the entire inpatient study, subjects will consume one multivitamin per day (Centrum, always complete, from A to Zinc) and one iron supplement per day. In addition, unlimited access to zero calorie liquids (water/diet soda) will be available and will be encouraged to maintain one's usual activity level.
Females of reproductive age, need to make sure that they do not become pregnant during the inpatient study. Urine will be tested for pregnancy once during the stabilization and weight maintenance phases of the study.
研究类型
注册 (预期的)
阶段
- 不适用
联系人和位置
学习地点
-
-
New York
-
New York、New York、美国、10021
- Rockefeller University
-
-
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:
- Man or a woman with a body mass index (BMI) of 30 to 34.9
- Man with a BMI of 25 to 29.9 with a waist circumference > 102cm (40in)
- Woman with a BMI of 25 to 29.9 with a waist circumference > 88cm (35in)
Exclusion Criteria:
- High Blood Pressure
- High Cholesterol
- Diabetes
- HIV positive
- Syphilis
- Hepatitis B/C positive
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:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
有源比较器:High Fat/Protein Diet
|
High Fat/Protein Diet: 10% carbohydrate, 25% protein, 65% fat (26% SFA, 25% MFA, 9% PUFA), P/S 0.33, 458 mg cholesterol/1500 kcal
|
有源比较器:High Carbohydrate Diet
|
65% carbohydrate, 15% protein, 20% fat (7% SFA, 8% MFA, 4% PUFA), P/S 0.63, 152 mg cholesterol/1500 kcal
|
研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
---|---|
Visceral adipose tissue
大体时间:days 12, 68
|
days 12, 68
|
次要结果测量
结果测量 |
大体时间 |
---|---|
Body composition
大体时间:days 12, 68
|
days 12, 68
|
Blood pressure
大体时间:days 11 and 67
|
days 11 and 67
|
Insulin glucose metabolism
大体时间:days 13, 15 69, 71
|
days 13, 15 69, 71
|
Bone turnover
大体时间:days 14, 70
|
days 14, 70
|
Measures of satiety
大体时间:once a week
|
once a week
|
合作者和调查者
调查人员
- 首席研究员:Jan L. Breslow, MD、Rockefeller University
出版物和有用的链接
有用的网址
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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