AdventHealth Translational Research Institute
The purpose of this research study is to study the effects of endurance exercise training on adipose (fat) tissue quality and insulin sensitivity in men and women.
Inclusion Criteria: 1. Men and pre-menopausal women; 2. 18-45 years of age; 3. BMI 30.0-40.0 kg/m2; 4. For women, if not using pharmaceutical (hormonal) contraception (i.e. birth control pills, vaginal ring, injections, or implant), must agree to use either a double barrier method as a form of birth control to prevent pregnancy (i.e. male condom with spermicide, with or without cervical cap or diaphragm); use implants or intrauterine contraceptive devices; have a tubal ligation (surgically sterile); practice abstinence; or be in an established relationship with a vasectomized or same sex part…
This procedure is used to sample muscle cells from the leg Vastus Lateralis (thigh) muscle.
This procedure is used to sample fat tissue from the abdomen (belly).
In this test, we will measure the effect of insulin by giving you insulin and glucose (sugar) intravenously through an IV line in your arm.
The tri-axial accelerometer measure activity and uses those values to estimate the number of calories burned based on your height, weight, age, and gender. The monitor also evaluates physical effort and the body's response to different activities.
Visit the study site 3 times a week to engage in endurance exercise training for approximately 12 weeks. Each session will last approximately 75 minutes, and exercise group can choose to use either a stationary bike or a treadmill to complete the training.
Visit the study site bi-weekly to get weight measurements and speak to the study team about weight maintenance and participant physical activity/dietary habits.
Participants in both control groups will be required to drink heavy water, which is ordinary water that is enriched with deuterium (stable, non-radioactive isotope) and called deuterium-labeled water, for 12 weeks.
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