Moderate Intensity vs High Intensity Interval Training in Women With Heart Failure

June 17, 2026 updated by: Riphah International University

Effects of Moderate Intensity Exercise vs High Intensity Interval Training on Functional Capacity and Quality of Life in Women With Heart Failure

  • To determine the effects of moderate intensity exercise vs high intensity interval training on functional capacity in women with heart failure
  • To determine the effects of moderate intensity exercise vs high intensity interval training on quality of life in women with heart failure

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
64

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Pakistan
    • Fedral
      • Islamabad, Fedral, Pakistan, 44000
        • Riphah International University
        • Contact:
        • Principal Investigator:
          • Dua Yasin, MSPT*

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.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Women aged 40-70 years, diagnosed with Stable Heart Failure (NYHA class II or III).
  • Clinically stable patients referred for exercise-based cardiac rehabilitation by the physician.
  • Able to perform exercise testing (able to walk 150 meters on the six-minute walk test) before starting the program.
  • Women willing to participate and provide informed consent.

Exclusion Criteria:

  • Unstable Heart failure or myocardial infarction (< 4 weeks).
  • Severe arrhythmias, uncontrolled hypertension, or ongoing chest pain during exercise.
  • Orthopedic, neurological, or cognitive limitations preventing safe exercise participation.
  • Any medical contraindication to exercise testing.
  • Refusal or inability to provide informed consent or comply with the rehabilitation program.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: High-intensity interval training
Other: High-intensity interval training
Group B will perform a high-intensity interval training (HIIT) program designed according to established cardiac rehabilitation protocols. Bicycle ergometer will be used, in which each session will begin with a 10-minute warm-up (lower limb large muscle stretches), followed by intervals performed at 80% of heart rate reserve (HRR) for 3 min, alternating with recovery periods at low intensity 40% of HRR for 3 min. The total exercise duration will be approximately 30 minutes per session, conducted three times weekly for 12 weeks under supervision. Participants will be encouraged to maintain self-directed exercise after the intervention period
Active Comparator: moderate-intensity aerobic training
Other: moderate-intensity aerobic training
Group A will undergo a moderate-intensity aerobic training program as part of a structured cardiac rehabilitation protocol. The program will be supervised sessions, conducted three times per week for 12 weeks. Each session will include approximately 30 minutes of aerobic exercise performed on a bicycle ergometer at an intensity of 60% of heart rate reserve (HRR)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Six-minute walk test
Time Frame: Baseline and 12 Week
The Six-Minute Walk Test (6MWT) is a simple, submaximal test that evaluates functional capacity and exercise capacity in patients with chronic heart failure by measuring the distance walked and estimating peak VO2. It will be performed in a 30-meter corridor, where participants will walk as far as possible in six minutes, with heart rate and oxygen saturation monitored before and after the test. This study tested the validity and reliability of the six-minute walk test (6MWT) in cardiac rehabilitation patients, including those with heart failure.
Baseline and 12 Week
EuroQol 5-Dimension Questionnaire
Time Frame: Baseline and 12 week
EuroQol 5-Dimension Questionnaire (EQ-5D): The EuroQol-5 Dimension (EQ-5D) is a questionnaire used to measure quality of life (QoL). It evaluates five key areas: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each area has one question, and responses together describe a person's overall health status. For the 5L, scores range from 5 to 25. A lower score indicates better health, while a higher score indicates greater health problems. Patients rate their overall health TODAY on a vertical scale from 0 (worst imaginable health) to 100 (best imaginable health)
Baseline and 12 week

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Riphah International University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Muhammad iqbal Tariq, PhD*, Riphah International University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 17, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 17, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 23, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 23, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 17, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Dua Yasin

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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