Upper Body Obesity
Conditions
Brief summary
The purpose of this study is to provide the first integrated examination of the interaction between muscle insulin action and exercise-stimulated muscle glucose uptake in obesity from the whole body to the cellular/molecular level.
Interventions
Cycling 60% VO2 max
Sponsors
Study design
Intervention model description
This study is aimed to determine whether obesity effects muscle glucose utilization during exercise.
Eligibility
Inclusion criteria
For the exercise studies of leg glucose uptake - "insulin sensitive" group: * Sedentary, normal weight, premenopausal women. * Sedentary, age-matched normal weight men. * Weight stable for two (2) months prior to study. * Willing to provide written, informed consent. * For the exercise studies of leg glucose uptake - "insulin resistant" group: For the exercise studies of leg glucose uptake - "insulin resistant" group: * Upper body obese (UBO) premenopausal women. * Age-matched upper body obese (UBO) men. * Weight stable for two (2) months prior to study. * Willing to provide written, informed consent.
Exclusion criteria
* Age \< 18 or \> 55 years (premenopausal women and age-matched men). * Use of glucose-lowering agents. * For female subjects: positive pregnancy test at the time of enrollment or study * History of prior upper abdominal surgery such as adjustable gastric banding, pyloroplasty and vagotomy. * Active systemic illness or malignancy. * Symptomatic macrovascular or microvascular disease.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Skeletal muscle glucose uptake | 1 hour | Is exercise induced skeletal muscle glucose uptake different in obese compared to lean adults |
Countries
United States
Contacts
Mayo Clinic