- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02701738
Impact of Exercise on the Metabolic Consequences of Overeating (XO)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
If subjects are eligible and decide to participate, they will take part in two identical study trials. One is scheduled before and the other is scheduled after 1 week of overeating controlled by the study team. Subjects who exercise regularly will be instructed to exercise the day before their first study trial - and they will be required to exercise during 6 of the 7 days of the overeating period (including the day before their second study trial). Subjects who do not regularly exercise (no planned physical activity) will remain inactive until the completion of both study trials.
Before each study trial If a subject is a regular exerciser, they will be asked to come to the Substrate Metabolism Laboratory in the afternoon before each of the 2 study trials to exercise in the lab for 45 min at a moderate intensity. The evening before the study trial, all subjects will need to eat a standardized dinner meal and snack. They must eat the meal and snack at specific times as indicated by the research staff. After eating the snack, subjects will need to fast (no food or beverages - besides water) overnight.
During each study trial Subjects will arrive at the Substrate Metabolism Laboratory at 7:00AM and will rest quietly for approximately 30 min. After which, the study team will measure their resting blood pressure and their resting metabolic rate. An intravenous catheter (IV) will then be placed in a vein of the subject's hand or forearm for blood sampling. The research team will then collect a small sample of fat tissue in the subject's abdomen with a needle. Next, subjects will drink a sweet sugar solution for an Oral Glucose Tolerance Test (OGTT) and the research team will collect blood samples every 15 min for 3 hours. After this 3 hour test, the IV catheter will be removed and subjects will be provided breakfast and discharged.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Michigan
-
Ann Arbor, Michigan, United States, 48109
- University of Michigan
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age: 18-40
- Body Mass Index: 20-30 kg/m2
- Exercise group: (≥5 days/wk of aerobic exercise; 30-60min/session at moderate and vigorous intensities)
- No Exercise group: no regularly planned exercise/physical activity
- Women must have regularly occurring menses and must be premenopausal
Exclusion Criteria:
- Pregnant or lactating
- Blood pressure > 140/90 mm Hg
- Evidence/history of cardiovascular or metabolic disease
- Medications known to affect lipid or glucose metabolism
- Tobacco or electronic cigarette user
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Overeating Protocol
Subjects will ingest 30% more calories per day than their calculated daily energy requirements (~750kcals extra energy intake each day).
All subjects will be instructed (and will be guided) to consume a diet containing approximately 50% carbohydrate, 35% fat, and 15% protein.
|
Subjects will ingest 30% more calories per day than their calculated daily energy requirements (~750kcals extra energy intake each day).
All subjects will be instructed (and will be guided) to consume a diet containing approximately 50% carbohydrate, 35% fat, and 15% protein.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Oral Glucose Tolerance
Time Frame: up to 1 week
|
An index of insulin sensitivity will be measured using the plasma insulin and glucose concentrations during the 3h OGTT
|
up to 1 week
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Resting Metabolic Rate
Time Frame: baseline and 1 week
|
baseline and 1 week
|
|
Total Cholesterol
Time Frame: baseline and 1 week
|
Plasma concentrations of total- cholesterol will be measured
|
baseline and 1 week
|
PPARg mRNA expression
Time Frame: baseline and 1 week
|
cytokine proteins will be measured in adipose tissue
|
baseline and 1 week
|
Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- HUM00102772
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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