Metabolic Adaptations to Chronic and Acute Exercise in Overweight Adults (ATX-Study) (ATX)
Studieöversikt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljerad beskrivning
Subjects will be asked to complete the Substrate Metabolism Laboratory General Screening Questionnaire and American Heart Association Health/Fitness Questionnaire to determine if they are eligible to complete the preliminary testing procedures. If eligible, subjects will be asked to visit the Substrate Metabolism Laboratory to participate in the preliminary testing procedures (listed below) before participating in the experimental trial.
PRELIMINARY TESTING PROCEDURES:
- Blood pressure, height and weight measurements
- Body Composition Assessment (~20 min)
- Exercise Fitness Test (~10 min)
- Resting Metabolic Rate (RMR) measurement (~30 min)
- 3 hour Oral Glucose Tolerance Test (OGTT)
EXPERIMENTAL TRIAL:
The evening before the experimental trial, subjects will eat a standardized dinner meal and snack. The meal and snack must be eaten 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.
Participants who exercise regularly will be instructed to exercise exactly 3 days before the experimental trial, and then abstain from their exercise training program until after the study is complete.
In the morning, subjects will return to the Substrate Metabolism Laboratory. The research team will collect a blood sample from the subject's hand or forearm and a small sample of fat tissue in the subject's abdomen with a needle. Next, subjects will exercise on a treadmill at a moderate intensity for about 1 hour. Immediately after exercising the research team will collect a second blood sample. Subjects will remain in the laboratory for 1 hour after exercising, and then the research team will collect another blood and fat tissue sample. Upon completion of the experimental trial, subjects will be provided a snack before leaving the laboratory.
Studietyp
Studietyp
Inskrivning (Förväntat)
Inskrivning
Fas
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
-
-
Michigan
-
Ann Arbor, Michigan, Förenta staterna, 48109
- University of Michigan
-
-
Deltagandekriterier
Urvalskriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- Age: 18-40
- Body Mass Index: 25-35 kg/m2
- Regular exercisers: (≥4 days/wk of aerobic exercise; 30-60min/session at moderate and vigorous intensities)
- Non-exercisers: no regularly planned exercise/physical activity
- Women must have regularly occurring menses and must be premenopausal
Exclusion Criteria:
- Blood pressure > 140/90 mm Hg
- Pregnant or lactating
- Evidence/history of cardiovascular or metabolic disease
- Medications known to affect lipid or glucose metabolism
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Grundläggande vetenskap
- Tilldelning: N/A
- Interventionsmodell: Enskild gruppuppgift
- Maskning: Ingen (Open Label)
Antal vapen
Vapen och interventioner
Deltagargrupp / ArmDeltagargrupp / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Övrig: Exercise session
Subjects will exercise at a moderate intensity for 60 minutes.
There are no different arms in this study.
|
A blood sample and fat biopsy will be obtained before and after the 60 minute moderate exercise session.
There is no drug or device intervention in this study.
|
Vad mäter studien?
Primära resultatmått
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
PPARg mRNA expression
Tidsram: change from baseline at 1 hour post exercise
|
The study team will quantify the abundance of key adipogenic markers in adipose tissue biopsy samples
|
change from baseline at 1 hour post exercise
|
|
Cytokine abundance in adipose tissue
Tidsram: change from baseline at 1 hour post exercise
|
The study team will measure cytokine proteins in adipose tissue
|
change from baseline at 1 hour post exercise
|
Sekundära resultatmått
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Total Cholesterol
Tidsram: change from baseline at 1 hour post exercise
|
Plasma concentrations of total- cholesterol will be measured.
|
change from baseline at 1 hour post exercise
|
Samarbetspartners och utredare
Sponsor
Sponsor
Studieavstämningsdatum
Studera stora datum
Studiestart
Studiestart
Primärt slutförande (Faktisk)
Primärt slutförande
Avslutad studie (Faktisk)
Avslutad studie
Studieregistreringsdatum
Först inskickad
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Första postat
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste uppdatering publicerad
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
Andra studie-ID-nummer
- HUM00102522
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