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Can exercise dose improve heart health? study tests the best amount

NCT ID NCT02514564

Disease control Sponsor: Instituto Nacional de Cardiologia de Laranjeiras Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how different amounts of aerobic exercise affect blood flow and fitness in 115 people with heart disease. Participants joined a cardiac rehab program and were monitored for changes in skin blood flow and oxygen use during exercise. The goal is to find the most effective exercise volume for improving cardiovascular health.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
aerobic exercise training
What this could lead to
If successful, this could help doctors prescribe the right amount of exercise to improve heart health and fitness in people with cardiovascular disease.
What could go wrong
This is a completed study, but the results may not apply to all heart patients. Exercise benefits are well-known, so the main question is about the optimal dose, not a breakthrough.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

115 people

The number who actually took part.

Start date

Dec 2014

Finished

Dec 2016

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients treated in the hospital in which the exercise will be performed.

Ages

40 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * sedentarism for at least 6 months; * clinical diagnosis for coronary artery disease (occurrence of any acute coronary syndrome, including ST elevation or non-ST elevation myocardial infarction or unstable angina or by the diagnosis of obstructive coronary artery disease on coronary angiography in patients with stable angina). Exclusion Criteria: * nephropathies; * decompensated cardiovascular diseases; * liver diseases.

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder coronary artery disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cardiovascular diseases

Contacts and locations

Locations

  • Instituto Nacional de Cardiologia

    Rio de Janeiro, Rio de Janeiro, 21040-900, Brazil

More trials for these conditions

Other studies related to the condition(s) this trial covers.