NCT03028168

Brief Summary

Current therapies for heart failure (HF) bring together strategies to improve quality of life and exercise tolerance, as well as to reduce morbidity and mortality. Some HF patients present changes in the musculoskeletal system and inspiratory muscle weakness, which may be restored by inspiratory muscle training, thus increasing respiratory muscle strength and endurance, maximum oxygen consumption (VO2), functional capacity, respiratory responses to exercise, and quality of life. Yoga therapies have been shown to improve quality of life, inflammatory markers, and VO2 peak in HF patients, mostly with reduced ejection fraction (HFrEF). However, the effect of different yoga breathing techniques in patients with HF with preserved ejection fraction (HFpEF) has yet to be assessed.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
32

participants targeted

Target at below P25 for not_applicable cardiovascular-diseases

Timeline
Completed

Started Aug 2012

Longer than P75 for not_applicable cardiovascular-diseases

Geographic Reach
1 country

2 active sites

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

August 1, 2012

Completed
4.5 years until next milestone

First Submitted

Initial submission to the registry

January 16, 2017

Completed
7 days until next milestone

First Posted

Study publicly available on registry

January 23, 2017

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2017

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2017

Completed
Last Updated

February 23, 2018

Status Verified

February 1, 2018

Enrollment Period

4.8 years

First QC Date

January 16, 2017

Last Update Submit

February 22, 2018

Conditions

Keywords

YôgaBreathing TechniquesHeart Failure and Preserved Ejection Fraction

Outcome Measures

Primary Outcomes (1)

  • Maximal inspiratory pressure (PImax)

    Inspiratory muscle strength by measuring maximal inspiratory pressure (PImax)

    up to 8 weeks

Secondary Outcomes (6)

  • Peak oxygen uptake (peak VO2)

    Baseline and 8 weeks

  • Vagal activity: heart rate variability- HRV

    Baseline and 8 weeks

  • Functional capacity through the 6-minute walk test (6MWD)

    Baseline and 8 weeks

  • Quality of life Minnesota scores

    Baseline and 8 weeks

  • N-terminal pro-brain natriuretic (NT-proBNP)

    Baseline and 8 weeks

  • +1 more secondary outcomes

Other Outcomes (2)

  • Other pulmonary functions - Inspiratory muscle force

    Baseline and 8 weeks

  • Oher pulmonary functions - Inspiratory muscle endurance

    Baseline and 8 weeks

Study Arms (3)

Intervention Yôga

EXPERIMENTAL

Active protocol with yôga body movements performed along with respiratory vigorous, without contentions. Two sessions per week, with 45 minutes duration.

Other: Yôga

Intervention breathing technique

EXPERIMENTAL

Passive protocol, seated patient, no significant body movements. Breathing technique, with alternate nostril breathing combined to inspiratory and expiratory retentions.Two sessions per week, with 45 minutes duration

Other: Breathing technique

Control group

EXPERIMENTAL

Control group (standard pharmacological treatment). Patients will be oriented to keep their pharmacological routine and daily activities, with no structured exercises. They will have to return to the hospital for post-testing after 8 weeks from randomization.

Other: Control group

Interventions

YôgaOTHER

Intervention observing respiratory frequency (RF) of 15- 20 respiratory cycles per minute (rcpm). A standardized 7-minute final relaxation .

Intervention Yôga

Intervention uses diaphragmatic breathing, observing slow respiratory frequency, between 5-8 rcpm. A standardized 7-minute final relaxation.

Intervention breathing technique

Patients will be oriented to keep their pharmacological routine and daily activities, with no structured exercises. They will have to return to the hospital for post-testing after 8 weeks from randomization

Control group

Eligibility Criteria

Age45 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult patients with a diagnosis of HFpEF, functional capacity class II and III, who are being treated at a specialized HF clinic will be eligible. HF diagnosis will be established by clinical history (signs and symptoms), echocardiographic findings (left ventricular ejection fraction ≥ 50%) and medical records confirming management for HF.

You may not qualify if:

  • Pulmonary disease (forced vital capacity\<80% of predicted and/or forced expiratory volume in 1 s \<70% of predicted, significant mitral or aortic valve diseases, history of exercise-induced asthma, and active smoking or alcoholic.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Hospital ULBRA - Mãe de Deus

Canoas, Rio Grande do Sul, 92425900, Brazil

Location

Hospital de Clínicas de Porto Alegre

Porto Alegre, Rio Grande do Sul, 90035903, Brazil

Location

Related Publications (2)

  • Lopes CP, Danzmann LC, Umpierre D, Moraes RS, Soares DS, Leitao SAT, Filho ASC, Depaoli F, Guimaraes LP, Chiappa G, Vieira PJC, Ribeiro JP, Biolo A. YOGA AND BREATHING TRAINING IN PATIENTS WITH HEART FAILURE AND PRESERVED EJECTION FRACTION: A RANDOMIZED CLINICAL TRIAL. medRxiv [Preprint]. 2025 Sep 5:2025.09.03.25335058. doi: 10.1101/2025.09.03.25335058.

  • Lopes CP, Danzmann LC, Moraes RS, Vieira PJC, Meurer FF, Soares DS, Chiappa G, Guimaraes LSP, Leitao SAT, Ribeiro JP, Biolo A. Yoga and breathing technique training in patients with heart failure and preserved ejection fraction: study protocol for a randomized clinical trial. Trials. 2018 Jul 28;19(1):405. doi: 10.1186/s13063-018-2802-5.

MeSH Terms

Conditions

Cardiovascular DiseasesHeart FailureHeart Failure, Diastolic

Interventions

Control Groups

Condition Hierarchy (Ancestors)

Heart Diseases

Intervention Hierarchy (Ancestors)

Epidemiologic Research DesignEpidemiologic MethodsInvestigative TechniquesResearch DesignMethods

Study Officials

  • Andréia Biolo, MD

    Hospital de Clinicas de Porto Alegre

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 16, 2017

First Posted

January 23, 2017

Study Start

August 1, 2012

Primary Completion

May 1, 2017

Study Completion

August 1, 2017

Last Updated

February 23, 2018

Record last verified: 2018-02

Locations