A Study to Compare the Effectiveness of Different High-intensity Interval Training Programs in Cardiac Rehabilitation

NCT ID: NCT04555512

Last Updated: 2026-01-14

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

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-06-23

Study Completion Date

2026-12-31

Brief Summary

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The purpose of the study is to examine the effect of two different high intensity interval training (HIIT) prescription approaches on improving fitness, heart function, and the ability of the body's muscles to receive oxygen.

Detailed Description

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Conditions

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Cardiac Rehabilitation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Standard-care interval-training group

Subjects will complete a standard interval-training program that remains constant for the entire 12 weeks of cardiac rehabilitation.

Group Type ACTIVE_COMPARATOR

Constant High Intensity Interval Training (CON-HIIT)

Intervention Type OTHER

Individual exercise training sessions, involving two weeks of moderate intensity continuous exercise and 10 weeks of interval exercise training. This protocol involves a constant protocol of training, including six high-intensity intervals (at an RPE of 15-18) of 1-min separated by five low-intensity intervals of 2-min.

Progressive interval-training group

Subjects will complete an interval-training program during which the number of intervals and the duration of each interval are changed across the 12-week cardiac rehabilitation program.

Group Type EXPERIMENTAL

Progressive High Intensity Interval Training (PRO-HIIT)

Intervention Type OTHER

Individual exercise training sessions, involving two weeks of moderate intensity continuous exercise and 10 weeks of interval exercise training. This protocol involves progression of training of 3 stages: 1) six high-intensity intervals (at an RPE of 15-18) of 1-min separated by five low-intensity intervals of 2-min; 2) three high-intensity intervals of 2-min separated by two low-intensity intervals of 4-min, and a further 2-min of low intensity following the last interval before cool-down; and 3) three high-intensity intervals of 3-min separated by two low-intensity intervals of 3-min, and a further 1-min of low intensity following last interval before cool-down.

Interventions

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Progressive High Intensity Interval Training (PRO-HIIT)

Individual exercise training sessions, involving two weeks of moderate intensity continuous exercise and 10 weeks of interval exercise training. This protocol involves progression of training of 3 stages: 1) six high-intensity intervals (at an RPE of 15-18) of 1-min separated by five low-intensity intervals of 2-min; 2) three high-intensity intervals of 2-min separated by two low-intensity intervals of 4-min, and a further 2-min of low intensity following the last interval before cool-down; and 3) three high-intensity intervals of 3-min separated by two low-intensity intervals of 3-min, and a further 1-min of low intensity following last interval before cool-down.

Intervention Type OTHER

Constant High Intensity Interval Training (CON-HIIT)

Individual exercise training sessions, involving two weeks of moderate intensity continuous exercise and 10 weeks of interval exercise training. This protocol involves a constant protocol of training, including six high-intensity intervals (at an RPE of 15-18) of 1-min separated by five low-intensity intervals of 2-min.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Adult 18 years and older.
* English speaking.
* Able to provide consent.
* Has a qualifying indication for center-based cardiac rehabilitation that is non-surgical (i.e., Acute coronary syndrome, myocardial infarction, percutaneous coronary intervention, and stable angina).

Exclusion Criteria

* Participants referred to cardiac rehabilitation following coronary artery bypass surgery, heart valve repair/replacement, heart transplant, or those with ventricular assist devices.
* Patients who are unable to engage in a regularly structured exercise training program as part of a clinically indicated center-based outpatient cardiac rehabilitation program are not eligible.
* Patients unable/unwilling to provide informed consent will not be enrolled.
* Patients identified as having a contraindication to high intensity exercise.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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Amanda R. Bonikowske

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Amanda R Bonikowske, PhD

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic in Rochester

Rochester, Minnesota, United States

Site Status

Countries

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United States

Related Links

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Other Identifiers

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20-005923

Identifier Type: -

Identifier Source: org_study_id

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