Ischemic Conditioning to Promote Microvascular Resiliency in Frail Individuals

Description

The goal of this clinical trial is to see how small blood vessels respond to the stress of high intensity exercise, and if a safe and simple intervention called ischemic conditioning can protect blood vessels from the stress of exercise. Participants will come in for 3 study visits and get home-based ischemic conditioning. At Study Visit 1, participants will be assessed for their frailty and physical function. Afterwards, they will perform an exercise test. At Study Visit 2, patients will undergo 2 microvascular assessments, perform a high-intensity exercise, then undergo the same 2 microvascular assessments again. Participants will be given a handheld sphygmomanometer and a blood pressure cuff to take home. Depending on which group the participants get randomized into, participants will place the blood pressure cuff around their non-dominant upper arm and inflate to either a low or high pressure for 2 weeks at home. Participants will repeat the same steps in Study Visit 2 for Study Visit 3. In addition, participants will also be assessed for their frailty and physical function.

Conditions

Aging, Fragility, Endothelial Dysfunction

Study Overview

Study Details

Study overview

The goal of this clinical trial is to see how small blood vessels respond to the stress of high intensity exercise, and if a safe and simple intervention called ischemic conditioning can protect blood vessels from the stress of exercise. Participants will come in for 3 study visits and get home-based ischemic conditioning. At Study Visit 1, participants will be assessed for their frailty and physical function. Afterwards, they will perform an exercise test. At Study Visit 2, patients will undergo 2 microvascular assessments, perform a high-intensity exercise, then undergo the same 2 microvascular assessments again. Participants will be given a handheld sphygmomanometer and a blood pressure cuff to take home. Depending on which group the participants get randomized into, participants will place the blood pressure cuff around their non-dominant upper arm and inflate to either a low or high pressure for 2 weeks at home. Participants will repeat the same steps in Study Visit 2 for Study Visit 3. In addition, participants will also be assessed for their frailty and physical function.

Ischemic Conditioning to Promote Microvascular Resiliency in Frail Individuals

Ischemic Conditioning to Promote Microvascular Resiliency in Frail Individuals

Condition
Aging
Intervention / Treatment

-

Contacts and Locations

Wauwatosa

Froedtert Hospital, Wauwatosa, Wisconsin, United States, 53226

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Women and men ages 65-85 years of age
  • * Myocardial infarction in last 6 months
  • * morbid obesity (BMI \>40)
  • * heart failure
  • * uncontrolled hypertension
  • * other condition that precludes high intensity exercise (ex, neurological disorder, acute systemic infection)
  • * history of blood clots in the extremities
  • * any condition in which compression of the arm or transient ischemia is contraindicated (e.g., wounds in the arm).

Ages Eligible for Study

65 Years to 85 Years

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

Yes

Collaborators and Investigators

Medical College of Wisconsin,

Study Record Dates

2029-12