Carbohydrate or Protein Drinks Before Exercise in the Heat
2026年6月10日 更新者:Brett Romano Ely、Providence College
The Impact of Pre-Exercise Meal Composition on Metabolic Heat Production and Thermal Strain During Exercise in a Hot Environment
This project examines whether consuming a high-protein or high-carbohydrate beverage before exercise in the heat impacts metabolism and heat balance during exercise, with the following research questions:
- Does a high-protein vs. high-carbohydrate pre-exercise drink impact metabolism and body temperature responses during a treadmill walking in the heat?
- Does a high-protein or high-carbohydrate drink change oxygen use and heat production during treadmill walking in the heat?
研究概览
研究类型
介入性
注册 (估计的)
16
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。
学习联系方式
- 姓名:Brett R Ely, PhD
- 电话号码:401-865-2632
- 邮箱:bely@providence.edu
研究联系人备份
- 姓名:Margaret Morrissey-Basler, PhD
- 电话号码:401-865-1209
- 邮箱:mmorri17@providence.edu
参与标准
研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
- 成人
接受健康志愿者
是的
描述
Inclusion Criteria:
- Able to walk or run up to 5 mph on a treadmill
- Able to consume products containing dairy (no allergy or dietary restrictions)
Exclusion Criteria:
- Following a diet that excludes any macronutrient group (low-carb or low-fat)
- Diagnosed cardiovascular or metabolic diseases (hypertension, diabetes)
- Diagnosed heat illness in past 3 months (heat exhaustion, heat stroke)
学习计划
本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。
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:交叉作业
- 屏蔽:三倍
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的:High Protein
A 22-oz high-protein, low-carbohydrate shake (chocolate flavor), given 60-90 minutes before exercise.
|
22 oz of a beverage containing 320 kilocalories (60g protein, 6g fat, 8g carbohydrate).
|
|
有源比较器:High Carbohydrate
A 22-oz, high-carbohydrate, low-protein & fat shake (chocolate flavor), given 60-90 minutes before exercise
|
22oz of a carbohydrate drink containing 320 kilocalories (75g carbohydrate, 3g protein, <1g fat)
|
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 |
|---|---|---|
|
Metabolic Heat Production
大体时间:Measured during 60 minutes of steady state exercise in 36C, 40% humidity
|
Heat production measured during exercise at 6 watts/kg, calculated based on oxygen consumption and carbon dioxide production during exercise (indirect calorimetry)
|
Measured during 60 minutes of steady state exercise in 36C, 40% humidity
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Core Temperature
大体时间:Measured at rest and following 60 minutes of exercise in a warm (36C, 40% humidity) environment
|
Internal temperature change during exercise
|
Measured at rest and following 60 minutes of exercise in a warm (36C, 40% humidity) environment
|
|
Urinary NGAL (ng/mL)
大体时间:Following 60 minutes of exercise in a warm environment (36C, 40% relative humidity)
|
Measured after exercise in high-protein and high-carbohydrate trials, NGAL (neutrophil-gelatinase associated lipocalin; a marker of acute kidney injury) will be measured in urine samples in each trial to assess kidney function.
|
Following 60 minutes of exercise in a warm environment (36C, 40% relative humidity)
|
|
Urine Specific Gravity (USG)
大体时间:Measured before and after 60 minutes of exercise in a warm (36C, 40%RH) environment.
|
Measured in urine samples provided before and after exercise, USG will be used as a marker of urine concentration and hydration status with each intervention.
|
Measured before and after 60 minutes of exercise in a warm (36C, 40%RH) environment.
|
|
Proteinuria
大体时间:Following 60 minutes of exercise in a warm environment (36C, 40% relative humidity)
|
Measured after exercise in high-protein and high-carbohydrate trials, total protein content will be measured in urine samples in each trial to assess kidney function.
|
Following 60 minutes of exercise in a warm environment (36C, 40% relative humidity)
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (估计的)
2026年6月4日
初级完成 (估计的)
2027年5月1日
研究完成 (估计的)
2027年5月1日
研究注册日期
首次提交
2026年6月2日
首先提交符合 QC 标准的
2026年6月10日
首次发布 (实际的)
2026年6月15日
研究记录更新
最后更新发布 (实际的)
2026年6月15日
上次提交的符合 QC 标准的更新
2026年6月10日
最后验证
2026年6月1日
更多信息
与本研究相关的术语
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)?
不
药物和器械信息、研究文件
研究美国 FDA 监管的药品
不
研究美国 FDA 监管的设备产品
不
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.