Aerobic Exercise on Ventilatory Efficiency in CAD Patients

April 7, 2014 updated by: Danilo Marcelo Leite do Prado, Hospital TotalCor

Effect of Aerobic Exercise Training on Ventilatory Efficiency in Patients With Coronary Artery Disease

The purpose of the present study was to test the hypothesis that patients with coronary artery disease with lower aerobic fitness exhibit greater responsiveness on improving ventilatory efficiency after aerobic exercise training.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Measurements of ventilatory efficiency during cardiorespiratory exercise testing typically expressed as the minute ventilation/ carbon dioxide production ratio have been validated to be useful in assessing the presence and severity of both heart and lung diseases. In this context, previous studies have showed ventilatory inefficiency in patients with coronary artery disease suggests abnormalities in the distribution of ventilation and perfusion in the lungs. In addition, a growing body of studies has demonstrated that lower ventilatory efficiency during exercise is considered an important predictor of risk mortality, hospitalization, and other outcomes than peak VO2.

Study Type

Interventional

Enrollment (Actual)

123

Phase

  • Phase 2

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

Ages Eligible for Study

48 years to 77 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • was stable coronary artery disease diagnosed by coronary angiography

Exclusion Criteria:

  • unstable angina pectoris,
  • complex ventricular arrhythmias,
  • pulmonary congestion and
  • orthopaedic or neurological limitations to exercise

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: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group 1 peak VO2 <17.5 ml/kg/min
The exercise training program was comprised of three 60-minute exercise sessions per week over a 3-month period. Each exercise session consisted of a 5 minute warm up, 30-50 minutes of aerobic exercise performed on a treadmill and 5 minutes of cool-down exercises. Aerobic exercise intensity was set at the corresponding heart rate between the VAT and RCP.
Other: Aerobic exercise training
The exercise training program was comprised of three 60-minute exercise sessions per week over a 3-month period. Each exercise session consisted of a 5 minute warm up, 30-50 minutes of aerobic exercise performed on a treadmill and 5 minutes of cool-down exercises. Aerobic exercise intensity was set at the corresponding heart rate between the VAT and RCP. All patients were able to achieve the set aerobic training intensity.
Experimental: Group 2 peak VO2 > 17.5 < 24.5 ml/kg/min
The exercise training program was comprised of three 60-minute exercise sessions per week over a 3-month period. Each exercise session consisted of a 5 minute warm up, 30-50 minutes of aerobic exercise performed on a treadmill and 5 minutes of cool-down exercises. Aerobic exercise intensity was set at the corresponding heart rate between the VAT and RCP. All patients were able to achieve the set aerobic training intensity.
Other: Aerobic exercise training
The exercise training program was comprised of three 60-minute exercise sessions per week over a 3-month period. Each exercise session consisted of a 5 minute warm up, 30-50 minutes of aerobic exercise performed on a treadmill and 5 minutes of cool-down exercises. Aerobic exercise intensity was set at the corresponding heart rate between the VAT and RCP. All patients were able to achieve the set aerobic training intensity.
Experimental: Group 3 peak VO2 > 24.5 ml/kg/min
The exercise training program was comprised of three 60-minute exercise sessions per week over a 3-month period. Each exercise session consisted of a 5 minute warm up, 30-50 minutes of aerobic exercise performed on a treadmill . Aerobic exercise intensity was set at the corresponding heart rate between the VAT and RCP. All patients were able to achieve the set aerobic training intensity.
Other: Aerobic exercise training
The exercise training program was comprised of three 60-minute exercise sessions per week over a 3-month period. Each exercise session consisted of a 5 minute warm up, 30-50 minutes of aerobic exercise performed on a treadmill and 5 minutes of cool-down exercises. Aerobic exercise intensity was set at the corresponding heart rate between the VAT and RCP. All patients were able to achieve the set aerobic training intensity.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Ventilatory efficiency in patients with coronary artery disease
Time Frame: up to 3 months of the interventions
Measurements of ventilatory efficiency during cardiopulmonary exercise testing typically expressed as the minute ventilation/ carbon dioxide production ratio have been validated to be useful in assessing the presence and severity of both heart and lung diseases. In this context, previous studies have showed ventilatory inefficiency in patients with coronary artery disease suggests abnormalities in the distribution of ventilation and perfusion in the lungs.
up to 3 months of the interventions

Collaborators and Investigators

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

Sponsor

Hospital TotalCor

Investigators

  • Principal Investigator: Danilo ML Prado, PHD, Hospital TotalCor

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

August 1, 2011

Primary Completion (Actual)

June 1, 2012

Study Completion (Actual)

May 1, 2013

Study Registration Dates

First Submitted

March 27, 2014

First Submitted That Met QC Criteria

April 7, 2014

First Posted (Estimate)

April 8, 2014

Study Record Updates

Last Update Posted (Estimate)

April 8, 2014

Last Update Submitted That Met QC Criteria

April 7, 2014

Last Verified

April 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 53/2010

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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