NCT03603743

Brief Summary

Purpose: Exaggerated sympathetic nervous system (SNS) activity associated with low heart rate variability (HRV) is considered as a trigger of cardiac arrhythmias and sudden death. Regular exercise training is efficient to improve autonomic balance. In 2013, the investigators published that a single session of an optimized short-high intensity interval exercise with passive recovery (HIIT) protocol was efficient in chronic heart failure (CHF) patients for enhancing vagal tone and to decrease arrhythmias in the 24-h post exercise period when compared to a single session of moderate intensity continuous exercise (MICT). Nevertheless the effects of HIIT training performed on several weeks have never yet been studied on the parameters described by Coumel's triangle (the arrhythmogenic substrate, the trigger factor as premature ventricular contraction and the modulation factors of which the most common is the autonomic nervous system). The aim of this study was to verify the superiority of HIIT to enhance parasympathetic activity, cardiorespiratory fitness and cardiac function when compared to MICT in a short and intense cardiac rehabilitation program.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
32

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2015

Typical duration for not_applicable

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 7, 2015

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 13, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 13, 2017

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

July 13, 2018

Completed
14 days until next milestone

First Posted

Study publicly available on registry

July 27, 2018

Completed
Last Updated

July 30, 2018

Status Verified

July 1, 2018

Enrollment Period

2.4 years

First QC Date

July 13, 2018

Last Update Submit

July 27, 2018

Conditions

Keywords

exercise trainingchronic heart failureparasympatheticautonomic nervous systemcardiorespiratory fitnesscardiac rehabilitation

Outcome Measures

Primary Outcomes (1)

  • High Frequency power in normalized units (HFnu%)

    based on Heart Rate Variability, the power spectral density of the HF (0.15-0.40 Hz, ms2.Hz-1) bands were calculated.

    Change from baseline through study completion, an average of 4 weeks (measured during the night period for stationary signal)

Secondary Outcomes (6)

  • maximal oxygen consumption (VO2peak ml.min.kg)

    Change from baseline through study completion, an average of 4 weeks

  • First ventilatory threshold (VT1) (ml.min.kg)

    Change from baseline through study completion, an average of 4 weeks

  • Heart Rate Recovery (beats per minute, bpm)

    Change from baseline through study completion, an average of 4 weeks

  • Left Ventricular Ejection Fraction (LVEF, %)

    Change from baseline through study completion, an average of 4 weeks

  • premature ventricular contraction, (n/24h)

    Change from baseline through study completion, an average of 4 weeks

  • +1 more secondary outcomes

Study Arms (2)

high intensity interval training

EXPERIMENTAL

high intensity interval training: two sets of 8-min intervals at 100% of peak power output (PPO). Each interval set was composed of repeated bouts of 30 s at 100% of PPO interspersed by 30 s of passive recovery in the seated position. Four minutes of passive recovery were allowed between the two sets.

Behavioral: exercise training in heart failure with HIIT

moderate intensity and continuous exercise

ACTIVE COMPARATOR

moderate intensity and continuous exercise: 30 minutes at 60% of PPO.

Behavioral: exercise training in heart failure with HIIT

Interventions

to compare MICT vs HIIT 5 days/week during 4 weeks in a Cardiovascular Centre.

high intensity interval trainingmoderate intensity and continuous exercise

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • stable chronic heart failure with NYHA functional class from I to III
  • stable left ventricular ejection fraction (LVEF) \< 45% over at least 6 months
  • stable optimal medical therapy including a beta-blocker and an angiotensin-converting enzyme inhibitor or angiotensin receptor blockers for at least 6 weeks
  • ability to perform a maximal cardiopulmonary exercise test
  • admitted to the Rehabilitation Centre for a comprehensive Cardiovascular Rehabilitation Program

You may not qualify if:

  • any relative or absolute contraindications to exercise training according to current recommendations
  • fixed-rate pacemaker with heart rate limits set lower than exercise training target
  • major cardiovascular event or procedure within the 3 months preceding enrolment
  • chronic atrial fibrillation
  • heart failure secondary to significant uncorrected primary valve disease (except for mitral regurgitation secondary to left ventricular dysfunction)
  • heart failure secondary to congenital heart disease or obstructive cardiomyopathy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Besnier F, Labrunee M, Richard L, Faggianelli F, Kerros H, Soukarie L, Bousquet M, Garcia JL, Pathak A, Gales C, Guiraud T, Senard JM. Short-term effects of a 3-week interval training program on heart rate variability in chronic heart failure. A randomised controlled trial. Ann Phys Rehabil Med. 2019 Sep;62(5):321-328. doi: 10.1016/j.rehab.2019.06.013. Epub 2019 Jul 25.

MeSH Terms

Interventions

Exercise

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Lisa Richard, MD

    Clinic of Saint-Orens, Cardiovascular and Pulmonary Rehabilitation Center, Saint-Orens-de-Gameville, France

    PRINCIPAL INVESTIGATOR
  • Thibaut Guiraud, PhD

    Institute of Cardiovascular and Metabolic Diseases, National Institute of Health and Medical Research (INSERM), UMR-1048, Toulouse, France

    STUDY DIRECTOR
  • Florent Besnier, PhD

    Clinic of Saint-Orens, Cardiovascular and Pulmonary Rehabilitation Center, Saint-Orens-de-Gameville, France. / Institute of Cardiovascular and Metabolic Diseases, National Institute of Health and Medical Research (INSERM), UMR-1048, Toulouse, France

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
heart rate variability analyses and echocardiography were performed by investigators blind to randomization
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: subjects were randomly assigned to one of the two groups: 1. high intensity interval training 2. moderate intensity and continuous training Block size = 4, allocation ratio 1:1
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator, Cardiologist

Study Record Dates

First Submitted

July 13, 2018

First Posted

July 27, 2018

Study Start

May 7, 2015

Primary Completion

October 13, 2017

Study Completion

October 13, 2017

Last Updated

July 30, 2018

Record last verified: 2018-07

Data Sharing

IPD Sharing
Will not share