Effects of Inspiratory Muscle Training on Functional Capacity in Patients With Heart Failure.

August 11, 2021 updated by: Riphah International University

Effects of Inspiratory Muscle Training on Functional Capacity in Patients With Heart Failure

Heart failure is a complex clinical syndrome manifesting as inability to supply adequate blood flow throughout the body due to any structural or functional cardiac abnormality. The most common complaints are exercise intolerance, balance, dyspnea, and fatigue in patients with heart failure. It is clearly stated that pulmonary muscle weakness is prevalent and contributes to exercise intolerance in patients with heart failure. Purpose of the study was to evaluate the efficacy of inspiratory muscle traning on pulmonary muscle strength, pulmonary function test, functional capacity and quality of life. The tools used were 6-minute walk test, spirometry, IMT threshold device for IMT strength, and Quality of life. Study was conducted in 20 patients in single group and pre and post values were evaluated. The significance this study bears was that it helped defining for us that to how much extent we can improve the physical and pulmonary functional capacity using inspiratory muscle training. Data were analysed using spss 22.0.mean and standard deviation were calculated. Appropirate the stasitical test were used after checking normailty of data. Parametric test were used for data analysis using SPSS 22

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

16

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Pakistan
    • Punjab
      • Lahore, Punjab, Pakistan, 54000
        • Sheikh Zayed Hospital

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

40 years to 60 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Adults 40-60 years old who are sedentary.
  2. Left ventricular ejection fraction of less than 45% evaluated by echocardiogram
  3. Functional class II and III (New York Heart Association)
  4. FEV1 less than 80%, predicted and/or FEV1/ forced vital capacity (FVC) ratio of more than 70% predicted, and clinical stability.
  5. Ex-smokers of more than 5 years.

Exclusion Criteria:

  1. Myocardial infarction
  2. Complex arrhythmias
  3. Uncontrolled hypertension
  4. Angina pectoris.
  5. Cognitive disorders
  6. Recent any trauma.
  7. Chronic respiratory disease.
  8. Unstable angina
  9. Recent viral infections (6 months before the study

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: study group
Patients were assigned to inspiratory muscle training (IMT) for 6 weeks. During training, patients were instructed to maintain diaphragmatic breathing, and try to maintain 10-15 breaths, and rested 5-10 between breaths. As soon as the patients managed; they were encouraged to maintain 25-30 breaths at each workload. All patients wore nose-clip during training. The inspiratory load was set at 40% of maximal inspiratory pressure. The training session was supervised at the hospital.
Other: Inspiratory Muscle training

Patients received IMT for 30-minute per day, 3 days per week for 3 weeks using the Threshold Inspiratory Muscle training device (product Phillips). During training, patients were instructed to maintain diaphragmatic breathing, and try to maintain 10-15 breaths, and rested 5-10 between breaths. As soon as the patients managed; they were encouraged to maintain 25-30 breaths at each workload. All patients wore nose-clip during training.

Inspiratory muscle training diaries were checked weekly. The inspiratory load was set at 40%of maximal inspiratory pressure.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Six-minute walk test (6MWT) Distance
Time Frame: 6 week
Six-minute walk test (6MWT) was applied in a 30-m unobstructed corridor. Patients and controls were instructed to walk at their own pace but to cover as much meter as possible within 6 min. Each minute standardized encouragement was given to the patients. Patients were allowed to stop and rest during the test but were instructed to go on walking as soon as they were able to do so. Heart rate and spo2 were monitored using pulse oximetry before and ending the test. Maximum heart rate values achieved during the tests were recorded. The rate of the perceived exertional scale was used before and after the 6MWT. The 6MWT distance is expressed as a percentage of the predicted values.
6 week
Pulmonary function test.
Time Frame: 6 week
Measurements of forced vital capacity and forced expiratory volume in 1, forced expiratory volume in one second/forced vital capacity, peak expiratory pressure was obtained with a computerized spiro-lab device as recommended by the European respiratory society, and results were expressed as a percentage of predicted values.
6 week
SF-36
Time Frame: 6 week

Quality of life was assessed using SF-36. The SF-36 is a generic measure, consisting of eight

subscales and 36 items. These subscales are physical functioning, role-physical, role- emotional, mental health, social functioning, bodily pain, general health. All subscales range

from 0 (worst possible) to100 points (best health).
6 week

Collaborators and Investigators

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

Sponsor

Riphah International University

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 (Actual)

October 13, 2020

Primary Completion (Actual)

June 30, 2021

Study Completion (Actual)

July 15, 2021

Study Registration Dates

First Submitted

August 5, 2021

First Submitted That Met QC Criteria

August 11, 2021

First Posted (Actual)

August 13, 2021

Study Record Updates

Last Update Posted (Actual)

August 13, 2021

Last Update Submitted That Met QC Criteria

August 11, 2021

Last Verified

August 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • REC/Lhr/20/0301 Ayesha Fatima

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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