RecruitingNot ApplicableNCT04791371

Role of Microvascular Insulin Resistance and Cardiorespiratory Fitness Diabetes


Sponsor

University of Colorado, Denver

Enrollment

150 participants

Start Date

Jun 17, 2022

Study Type

INTERVENTIONAL

Conditions

Summary

The goal of this two-site grant proposal is to determine the role of the decreased insulin-mediated muscle perfusion found in type 2 diabetes in contributing to the development of cardiac and skeletal muscle dysfunction and subsequent functional exercise impairment. In addition, it is also our goal to determine whether exercise training attenuates insulin resistance and restores insulin-mediated perfusion to the heart and to skeletal muscle, leading to improved cardiac function and exercise performance.


Eligibility

Min Age: 30 YearsMax Age: 55 Years

Inclusion Criteria3

  • Sedentary (defined as less than 1 hour per week of physical activity)
  • BMI: 25-40
  • Men and women with and without type 2 diabetes

Exclusion Criteria14

  • Documented cardiovascular disease
  • Uncontrolled hypertension: disease systolic blood pressure (SBP) \> 150, diastolic blood pressure (DBP)\> 110
  • Obstructive pulmonary disease or asthma
  • Peripheral neuropathy
  • Physical impairment that would limit exercise ability
  • Subjects taking beta blockers, calcium channel blockers, insulin, or Thiazolidinediones (TZD)
  • Current or past smoking within the last 1 years
  • Current tobacco use
  • Anemia
  • Control HbA1c \> 5.7, T2DM HbA1c \> 9
  • Pregnant, nursing or hormonal therapy (other than contraceptives)
  • Peri or post-menopausal women
  • Type 1 diabetes
  • Hepatic or renal disease.

Interventions

BEHAVIORALCardiovascular exercise

15 weeks of cardiovascular exercise 3x/week for 50 minutes/session


Locations(2)

University of Colorado

Aurora, Colorado, United States

University of Virginia

Charlottesville, Virginia, United States

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NCT04791371


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