Effects of Varied Macronutrient Composition on Weight Loss in Obese Adolescents
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 32
- 试验地点
- 1
- 主要终点
- BMI Z-Score
研究概览
简要总结
The aim of the proposed study is to provide important data on weight loss efficacy in overweight and obese adolescents on an isocaloric higher protein diet vs a lower protein diet utilizing the U.S. Department of Agriculture (USDA) MyPlate nutrition guide. The investigators hypothesize that the higher protein diet will result in greater weight loss due to increased satiety and better dietary adherence.
详细描述
Aim 1 is to test the efficacy of a personalized higher protein weight loss intervention compared to a lower protein intervention which use the USDA MyPlate nutrition guide.
It is hypothesized that participants randomly assigned to the higher protein dietary treatment will lose more weight based on BMI-Z score over 12 weeks compared to participants in the lower dietary protein treatment.
Aim 2 is to test if changes in subjective ratings of appetite differ by dietary treatment (i.e. protein intake).
It is hypothesized that participants in the higher protein intervention will report a decrease in hunger and an increase in fullness compared to participants in the lower protein intervention.
Aim 3 is to test if change in the hexosamine biosynthetic pathway (HBP) measured at the rate limiting step of glutamine fructose-6-phosphate amidotransferase (GFAT) and glycosylation measured as O-linked N-acetylglucosamine (GlcNAc) transferase (OGT) differ by dietary treatment.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 12 Years 至 17 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Be male or female
- •Be between the ages of 12 and 17, inclusive
- •Be at or above the 85th BMI percentile (a number calculated from the participants height, weight, sex, and date of birth)
- •Be willing to fast for 12 hours prior to clinic study visits 2 and 4
- •Be willing to participate in the research study
排除标准
- •Health Conditions:
- •Has HIV or AIDS
- •Has uncontrolled CVD or arrhythmia
- •Has Type I or Type II diabetes.
- •Is unable or unwilling to complete the study procedures
- •Participant may not qualify for this study based on other exclusion criteria not listed. The study coordinator will go over this information in detail.
- •Medications:
- •Diuretics
- •Beta-blocker
- •Weight loss medications, diet pills
- •Anti-inflammatory drugs (corticosteroid/anabolic steroid/NSAID)
- •Antipsychotic medications
- •Other medications that may affect fluid balance or weight
- •Plans to move out of the study area within the next 4 months, or plan to be out of the study area for more than 3 weeks during the course of the study.
研究组 & 干预措施
Higher protein and energy restriction
Participants in this arm will consume 30% of energy as protein with 25% energy restriction.
干预措施: Energy Restriction (Behavioral)
Higher protein and energy restriction
Participants in this arm will consume 30% of energy as protein with 25% energy restriction.
干预措施: Higher protein (Behavioral)
Lower protein and energy restriction
Participants in this arm will consume 15% of energy as protein with 25% energy restriction.
干预措施: Energy Restriction (Behavioral)
Lower protein and energy restriction
Participants in this arm will consume 15% of energy as protein with 25% energy restriction.
干预措施: Lower Protein (Behavioral)
结局指标
主要结局
BMI Z-Score
时间窗: up to Week 12
次要结局
- Subjective Ratings of Appetite(Baseline and Week 12)
- Hexosamine Biosynthetic Pathway(Baseline and Week 12)
研究者
John Apolzan
Assistant Professor
Pennington Biomedical Research Center