NCT04869033

Brief Summary

This study was to investigate the effect of Farinelli's breathing exercise on pulmonary function, respiratory muscle strength, aerobic capacity, impact of COPD questionnaires, cytokines, and oxidative stress in patients with Chronic Obstructive Pulmonary Disease (COPD).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
16

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2020

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

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

January 7, 2020

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 27, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 27, 2020

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

April 1, 2021

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 3, 2021

Completed
Last Updated

May 3, 2021

Status Verified

April 1, 2021

Enrollment Period

8 months

First QC Date

April 1, 2021

Last Update Submit

April 28, 2021

Conditions

Keywords

Farinelli's breathing exerciseCOPDpulmonary functionrespiratory muscle strengthaerobic capacitycytokineCOPD symptoms

Outcome Measures

Primary Outcomes (12)

  • Force Vital Capacity (FVC) change

    FVC is the total volume of air that can be exhaled during a maximal forced expiration effort. The participants were asked to wear a nose clip while sitting on a chair, and the researcher gave the participants the step-by-step protocol to prevent an incorrect maneuver. For the FVC maneuver, three cycles of slow normal breathing were performed before demonstrating forced inspiration and expiration. FVC is measured in liters.

    Change from Baseline Force Vital Capacity at 8 weeks.

  • Forced expiratory volume in 1 second (FEV1) change

    FEV1 is the volume of air exhaled in the first second under force after a maximal inhalation. The participants were asked to wear a nose clip while sitting on a chair, and the researcher gave the participants the step-by-step protocol to prevent an incorrect maneuver. For the FVC maneuver, three cycles of slow normal breathing were performed before demonstrating forced inspiration and expiration. FEV1 was showed in liters.

    Change from Baseline Forced expiratory volume in 1 second at 8 weeks.

  • Tidal Volume (TV) change

    TV is the volume of air inhaled or exhaled during each respiratory cycle. The participants were asked to wear a nose clip while sitting on a chair, and the researcher gave the participants the step-by-step protocol to prevent an incorrect maneuver. For the FVC maneuver, three cycles of slow normal breathing were performed before demonstrating forced inspiration and expiration. TV is measured in liters.

    Change from Baseline Tidal Volume at 8 weeks.

  • Inspiratory Reserve Volume (IRV) change

    IRV is the maximal volume of air inhaled from end-inspiration. The participants were asked to wear a nose clip while sitting on a chair, and the researcher gave the participants the step-by-step protocol to prevent an incorrect maneuver. For the FVC maneuver, three cycles of slow normal breathing were performed before demonstrating forced inspiration and expiration. IRV is measured in liters.

    Change from Baseline Inspiratory Reserve Volume at 8 weeks.

  • Expiratory Reserve Volume (ERV) change

    ERV is the maximal volume of air exhaled from end-expiration. The participants were asked to wear a nose clip while sitting on a chair, and the researcher gave the participants the step-by-step protocol to prevent an incorrect maneuver. For the FVC maneuver, three cycles of slow normal breathing were performed before demonstrating forced inspiration and expiration. ERV is measured in liters.

    Change from Baseline Expiratory Reserve Volume at 8 weeks.

  • Inspiratory capacity (IC) change

    IC is the amount of air that can be inhaled after the end of a normal expiration. It is, therefore, the sum of the tidal volume and inspiratory reserve volume. The participants were asked to wear a nose clip while sitting on a chair, and the researcher gave the participants the step-by-step protocol to prevent an incorrect maneuver. For the FVC maneuver, three cycles of slow normal breathing were performed before demonstrating forced inspiration and expiration. IC was showed in liters.

    Change from Baseline Inspiratory Capacity at 8 weeks.

  • Peak Expiratory Flow (PEF) change

    PEF is the amount and rate of air that can be forcefully breathed out of the lungs. The participants were asked to wear a nose clip while sitting on a chair, and the researcher gave the participants the step-by-step protocol to prevent an incorrect maneuver. For the FVC maneuver, three cycles of slow normal breathing were performed before demonstrating forced inspiration and expiration. PEF is measured in liters/seconds.

    Change from Baseline Peak Expiratory Flow at 8 weeks.

  • Forced Expiratory Flow from 25% to 75% of vital capacity (FEF25-75%) change

    FEF25-75% is the average flow from the point at which 25 percent of the FVC has been exhaled to the point at which 75 percent of the FVC has been exhaled. The participants were asked to wear a nose clip while sitting on a chair, and the researcher gave the participants the step-by-step protocol to prevent an incorrect maneuver. For the FVC maneuver, three cycles of slow normal breathing were performed before demonstrating forced inspiration and expiration. FEF25-75% is measured in liters/seconds.

    Change from Baseline Forced Expiratory Flow from 25% to 75% of vital capacity (FEF25-75%) at 8 weeks.

  • The ratio of forced expiratory volume in 1 second to forced vital capacity (FEV1/FVC) change

    It represents the proportion of a person's vital capacity that they are able to expire in the first second of forced expiration (FEV1) to the full, forced vital capacity (FVC). The participants were asked to wear a nose clip while sitting on a chair, and the researcher gave the participants the step-by-step protocol to prevent an incorrect maneuver. For the FVC maneuver, three cycles of slow normal breathing were performed before demonstrating forced inspiration and expiration. FEV1/FVC was showed in percentage.

    Change from Baseline The ratio of forced expiratory volume in 1 second to forced vital capacity at 8 weeks.

  • Respiratory muscle strength change

    Respiratory muscle strength was assessed by measuring Maximal Inspiratory Pressure (MIP) and Maximal Expiratory Pressure (MEP) in cmH2O. The participants were in a sitting position using a portable handheld mouth pressure meter (i.e., MicroRPM) with a nose clip. For the MIP measurement, the participants were asked to exhale until they felt no air remaining in their lungs (starting with the functional residual capacity \[FRC\] point), then held the device on their mouth and inhaled forcefully for 1-2 seconds. For the MEP measurement, the participants were asked to inhale until their lungs were completely filled with air (starting with the total lung capacity \[TLC\] point), then they kept the device on their mouth and exhaled forcefully for 1-2 seconds

    Change from Baseline respiratory muscle strength at 8 weeks.

  • Maximal Voluntary Ventilation (MVV) change

    The participants were asked to inhale and exhale quickly and forcefully for 10 seconds. Maximal Voluntary Ventilation (MVV) were measured in liters/minutes.

    Change from Baseline Maximum Voluntary Ventilation at 8 weeks.

  • Impact of COPD change

    The impact of COPD was assessed using the mMRC and the CAT. The mMRC has a 5-point (0-4) scale based on the severity of dyspnea, whereas the CAT is a patient-completed instrument to assess and quantify the quality of life and burden of the symptoms in patients with COPD. It consists of eight questions, each of which had a semantic 6-point (0-5) differential scale, providing a total score of up to 40 points. The scores 0-10, 11-20, 21-30, and 31-40 represented mild, moderate, severe, and very severe clinical impact, respectively.

    Change from Baseline Impact of COPD at 8 weeks.

Secondary Outcomes (3)

  • Cytokines change

    Change from baseline cytokines at 8 weeks.

  • Malondialdehydes (MDA) change

    Change from baseline Malondialdehydes at 8 weeks.

  • Aerobic capacity change

    Change from Baseline aerobic capacity at 8 weeks.

Study Arms (2)

Farinelli's breathing group

EXPERIMENTAL

Complete Farinelli's breathing exercise 5 times per week for 8 weeks.

Other: Farinelli's Breathing Exercise

Diaphragmatic breathing group (control group)

OTHER

Complete Diaphragmatic breathing exercise 5 times per week for 8 weeks.

Other: Diaphragmatic Breathing Exercise

Interventions

after 1 minute of normal breathing, follow this instruction; inhale 2 seconds, suspend 2 seconds, exhale 2 seconds. inhale 3 seconds, suspend 3 seconds, exhale 3 seconds. inhale 4 seconds, suspend 4 seconds, exhale 4 seconds. inhale 5 seconds, suspend 5 seconds, exhale 5 seconds. inhale 6 seconds, suspend 6 seconds, exhale 6 seconds. This cycle lasted 1 minute (60 seconds), called Farinelli's breathing (FB). When participants finished these cycle, repeated it again 4 times. 1 minute of NB + 4 minutes of FB called 1 set. The participants were asked to practice 6 sets/day, 5 days/week (Monday-Friday) for week 1-4, and increased duration to 8 sets/day, 5 days/week for week 5-8.

Farinelli's breathing group

after 1 minute of normal breathing, inhale 2 seconds and exhale 2 seconds with nasal airway. Continued breathing this pattern until 4 minutes, then back to normal breathing 1 minute . 1 minute of NB + 4 minute of DB called 1 set. The participants were asked to practice 6 sets/day, 5 days/week (Monday-Friday) for week 1-4, and increased duration to 8 sets/day, 5 days/week for week 5-8.

Diaphragmatic breathing group (control group)

Eligibility Criteria

Age51 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with COPD who treated in Phramongkutklao Hospital
  • Have a history of smoking
  • FEV1 predicted after bronchodilator more than 50%
  • No change in medication in 4 weeks
  • No history of acute exacerbation in 4 weeks
  • No history of cardiac disease.

You may not qualify if:

  • Recurrent of acute exacerbation
  • Cannot participate at least 80% of training program (≤ 32 sessions of 40 sessions)
  • Unwilling to continue practicing.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Sports Science, Chulalongkorn University

Bangkok, 10330, Thailand

Location

Related Publications (7)

  • Barnes PJ. Inflammatory mechanisms in patients with chronic obstructive pulmonary disease. J Allergy Clin Immunol. 2016 Jul;138(1):16-27. doi: 10.1016/j.jaci.2016.05.011. Epub 2016 May 27.

    PMID: 27373322BACKGROUND
  • Beavers KM, Brinkley TE, Nicklas BJ. Effect of exercise training on chronic inflammation. Clin Chim Acta. 2010 Jun 3;411(11-12):785-93. doi: 10.1016/j.cca.2010.02.069. Epub 2010 Feb 25.

    PMID: 20188719BACKGROUND
  • Cahalin LP, Braga M, Matsuo Y, Hernandez ED. Efficacy of diaphragmatic breathing in persons with chronic obstructive pulmonary disease: a review of the literature. J Cardiopulm Rehabil. 2002 Jan-Feb;22(1):7-21. doi: 10.1097/00008483-200201000-00002.

    PMID: 11839992BACKGROUND
  • Gosselink R. Breathing techniques in patients with chronic obstructive pulmonary disease (COPD). Chron Respir Dis. 2004;1(3):163-72. doi: 10.1191/1479972304cd020rs.

    PMID: 16281658BACKGROUND
  • Holland AE, Hill CJ, Jones AY, McDonald CF. Breathing exercises for chronic obstructive pulmonary disease. Cochrane Database Syst Rev. 2012 Oct 17;10(10):CD008250. doi: 10.1002/14651858.CD008250.pub2.

    PMID: 23076942BACKGROUND
  • Ksinopoulou H, Hatzoglou C, Daniil Z, Gourgoulianis K, Karetsi H. Respiratory function in vocal soloists, opera singers and wind instrument musicians. Med Lav. 2016 Dec 13;107(6):437-443.

    PMID: 27976662BACKGROUND
  • Leelarungrayub J, Puntumetakul R, Sriboonreung T, Pothasak Y, Klaphajone J. Preliminary study: comparative effects of lung volume therapy between slow and fast deep-breathing techniques on pulmonary function, respiratory muscle strength, oxidative stress, cytokines, 6-minute walking distance, and quality of life in persons with COPD. Int J Chron Obstruct Pulmon Dis. 2018 Dec 5;13:3909-3921. doi: 10.2147/COPD.S181428. eCollection 2018.

    PMID: 30584292BACKGROUND

MeSH Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Model Details: Sixteen patients with COPD (GOLD I) with mild and moderate (GOLD II) severity aged 51 - 80 years old who visited at the outpatient examination room, Phramongkutklao Hospital divided into 2 groups; diaphragmatic breathing group (DB; n=8) and Farinelli's breathing group (FB; n=8). Participants in each group were administered to complete breathing exercise 5 times per week for 8 weeks. Physiological data and pulmonary function (FVC, FEV1, PEF, FEV1/FVC, FEF25-75%, MVV, VC, TV, IRV, ERV and IC), respiratory muscle strength (MIP and MEP), aerobic capacity (6-MWD and VO2max), impact of COPD questionnaire (mMRC and CAT), cytokine (TNF-α and IL-6), and oxidative stress (MDA) were analyzed during Pre- and Post-test. The dependent variables between pre-test and post-test were analyzed by a paired t-test. Independent t-test was used to compare the variables between groups. Differences were significant at p \< .05.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

April 1, 2021

First Posted

May 3, 2021

Study Start

January 7, 2020

Primary Completion

August 27, 2020

Study Completion

August 27, 2020

Last Updated

May 3, 2021

Record last verified: 2021-04

Locations