Blood Flow Response and Acute INterval Exercise

NCT ID: NCT04673994

Last Updated: 2023-02-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

91 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-12-09

Study Completion Date

2023-02-03

Brief Summary

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The objective of this project is to study the cerebrovascular response to a single bout of high intensity interval exercise (HIIT) in 25 individuals with chronic stroke compared to 25 age- and sex- matched healthy controls (CON). We will enroll 25 young healthy adults (CONyoung) as a reference group. Our hypothesis is that the cerebrovascular response in individuals with chronic stroke will be significantly lower: 1) during a single bout of HIIT, and 2) during the recovery immediately following and 30 minutes after HIIT, compared to CON.

This study has 2 visits at the University of Kansas Medical Center Research in Exercise and Cardiovascular Health Laboratory. For the first visit, we will perform questionnaires about heart health, physical activity and overall health. Participants will then complete a submaximal exercise test on a seated stepper. Participants will also have a familiarization session to practice HIIT. The second visit will include cerebrovascular measures before, during, immediately after, and 30 minutes after performing HIIT.

Detailed Description

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Conditions

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Stroke High Intensity Interval Exercise

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Chronic Stroke

Individuals 40-80 years old who have had a stroke 6 months to 5 years ago.

Single, acute bout of high intensity interval exercise

Intervention Type BEHAVIORAL

Individuals will perform a single bout of high intensity interval exercise on a seated recumbent stepper. Participants will perform the pattern of high intensity interval exercise by switching between 1-minute high intensity stepping followed by 1-minute light, active recovery stepping for a total of 10 minutes.

CON

Control group (CON) comprised of age- and sex-matched healthy adults.

Single, acute bout of high intensity interval exercise

Intervention Type BEHAVIORAL

Individuals will perform a single bout of high intensity interval exercise on a seated recumbent stepper. Participants will perform the pattern of high intensity interval exercise by switching between 1-minute high intensity stepping followed by 1-minute light, active recovery stepping for a total of 10 minutes.

CONyoung

Healthy, young adult control group (CONyoung) who are age 18-30 years old.

Single, acute bout of high intensity interval exercise

Intervention Type BEHAVIORAL

Individuals will perform a single bout of high intensity interval exercise on a seated recumbent stepper. Participants will perform the pattern of high intensity interval exercise by switching between 1-minute high intensity stepping followed by 1-minute light, active recovery stepping for a total of 10 minutes.

Interventions

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Single, acute bout of high intensity interval exercise

Individuals will perform a single bout of high intensity interval exercise on a seated recumbent stepper. Participants will perform the pattern of high intensity interval exercise by switching between 1-minute high intensity stepping followed by 1-minute light, active recovery stepping for a total of 10 minutes.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Age 40-80 years old
* Treated for stroke 6 months to 5 years ago
* Performs \<150 minutes of moderate intensity exercise per week
* Able to answer consenting questions and follow a 2-step command


* Matched age ± 5 years to participant with chronic stroke
* Matched sex to participant with chronic stroke
* Performs \<150 minutes of moderate intensity exercise per week
* Able to answer consenting questions and follow a 2-step command


* Age 18-30 years old
* Low cardiac risk (defined by the American College of Sports Medicine)
* Able to find TCD signal on the right or left MCA

Exclusion Criteria

* Stroke etiology due to COVID-19 pathology.
* Symptoms of COVID-19 and/or Positive COVID-19 test within the past 3 months
* Unable to stand from a sitting position without physical assistance
* Recent joint replacement/surgery/poor motor control that limits ability to perform exercise on a recumbent stepper
* Insulin injection dependent diabetes
* Dependent on supplementary oxygen
* History of other neurological disease (Multiple Sclerosis, Alzheimer's disease, Parkinson's disease)
* Unable to find TCD signal on the stroke-affected or non-affected MCA.


* Symptoms of COVID-19 and/or Positive COVID-19 test within the past 3 months
* Unable to stand from a sitting position without physical assistance
* Recent joint replacement/surgery/poor motor control that limits ability to perform exercise on a recumbent stepper
* Insulin injection dependent diabetes
* Dependent on supplementary oxygen
* History of other neurological disease (Multiple Sclerosis, Alzheimer's disease, Parkinson's disease)
* Unable to find TCD signal on the right or left MCA.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Kansas Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Sandra A Billinger, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Kansas Medical Center

Locations

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University of Kansas Medical Center

Kansas City, Kansas, United States

Site Status

Countries

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United States

Other Identifiers

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STUDY00146161

Identifier Type: -

Identifier Source: org_study_id

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