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Comparison of Two Exercise Training Modes on Left Myocardial Regional Function After Myocardial Infarction Evaluated by 2D Strain Ultrasound

NCT04190394 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2026-03-13

No results posted yet for this study

Summary

Ischemic cardiomyopathy, defined by a deficiency in oxygenation of the myocardium due to a narrowing of the coronary arteries, is a major problem for public health. Medicinally-treated or re-vascularized cardiovascular rehabilitation following myocardial infarction has shown undeniable benefits in decreasing the overall mortality rate (13-26%), cardiovascular mortality (26-36%) and morbidity, by controlling cardiovascular risk factors and improving tolerance to effort and consequently improving the quality of life. Since the integration of physical exercise into the rehabilitation programs of patients suffering from coronary disease in the mid-90s, and throughout the following decade, the exercise training program has mainly relied on moderately intense continuous exercises (CONT) the aim of which is to improve the aerobic capacity. These efforts typically consist of performing a submaximal exercise with an intensity of 50 to 80% of the maximum capacity for effort (established according to studies depending on the maximum or reserve heart rate or even peak power, measured when performing a first test, then a progressive and maximum test), and a constant duration (about 20 to 60 minutes). In the 2000s, under the aegis of Scandinavian teams, the intermittent mode (IT) appeared, characterized by alternating high intensity efforts of a short duration with active recuperation phases (Rognmo et al., 2004). Superiority of the IT mode over the CONT mode is generally observed on aerobic capacity for effort, usually gauged via the maximal oxygen consumption peak measured during a graded and maximum effort test. An important methodological bias in the comparison of the two modalities, within meta-analyses or even in the same randomized controlled trial, is the absence of control/pairing on the overall volume of training. At the present time, and to the best of our knowledge, there have been no studies to compare the effects of CONT versus IT modes on the systolic or diastolic function of the myocardial region by 2D-strain following myocardial infarction. The aim of our study was to compare the outcomes of 2D strain scans upon inclusion and after 8 weeks of cardiovascular physiotherapy for 2 groups of patients benefiting from a CONT or IT program.

Conditions

  • Ischemic Cardiomyopathy

Interventions

OTHER

Intermittent retraining program.

Patient benefits from an intermittent retraining program for 8 weeks, with three 45-minute sessions per week.

Sponsors & Collaborators

  • Centre Hospitalier Universitaire de Nīmes

    lead OTHER

Principal Investigators

  • Arnaud DUPEYRON, Dr. · CHU de Nîmes (Nîmes University Hospital)

Study Design

Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-03-12
Primary Completion
2023-07-20
Completion
2023-07-20

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04190394 on ClinicalTrials.gov