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COPDNCT04857541

Breathing Performance of Healthy Young Adult

An observational study of COPD and COPD-like, run by National Cheng-Kung University Hospital at 1 site in Taiwan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study will recruit subject of healthy adult, COPD-like patient and patient with COPD to investigate the difference of respiratory performance. We will measure the body composition, respiratory muscle force, pulmonary function and performance of voluntary cough. Read more about this study

Who is it for?
Ages 20 years and olderHealthy volunteers can take part
Conditions the study is for
COPD, COPD-like
How many people
65 participants
Where
1 siteTaiwan
Study dates
11 May 2021to 20 Apr 2022
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: 1. Health subject: healthy adults with no existed respiratory condition 2. COPD-like subject: subjects with COPD-like symptoms but not reach the diagnosis criteria 3. COPD subject: subjects with diagnosed COPD

Who may be able to join

  • aged 20 years or above
  • currently not being diagnosis as COPD
  • less than 4 times/week of aerobic exercise
  • COPD-like subject
  • aged 20 years or above
  • currently not being diagnosis as COPD
Show all 12Show fewer
  • presented of COPD symptoms (coughing, sputum production and dyspnea), last for 3 months and more than 2 years
  • score more than 1 on modified Medical Research Council (mMRC) or COPD Assessment Test (CAT)
  • COPD subject
  • aged 20 years or above
  • currently being diagnosis as COPD
  • haven't participated in any pulmonary rehabilitation program in the past three months

Who cannot join

  • Untreated comorbidities for COPD
  • Postural asymmetries (Scoliosis, length discrepancy of the lower limbs or other previous surgical history of spine)
  • Chronic nonspecific lumbopelvic pain
  • Gynecological or abdominal surgery in the previous year
  • Pregnancy or post-delivery in the previous 6 months
  • Neurological or inflammatory disorders
  • Any conditions that may interfere with the data collection

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • National Cheng Kung University Hospital

    Tainan, 704

Other trials in Taiwan

About this study

Official title: Investigation of Breathing Performance of Healthy Young Adult

The study will recruit subject of healthy adult, COPD-like patient and patient with COPD to investigate the difference of respiratory performance. We will measure the body composition, respiratory muscle force, pulmonary function and performance of voluntary cough. The muscle thickness of abdominal muscle and diaphragm, assessment of diaphragm during different breathing pattern and the muscle activation during voluntary cough will also being determined. We hypothesized that there will be a significantly different between three group on the performance of voluntary cough, and the correlation between each variable will be further investigated.

Read the detailed description

The specific aims of the study are:

  1. difference of respiratory muscle performance between three groups
  2. the correlation between respiratory symptom and pulmonary functional test
  3. difference of functional respiratory performance (peak cough flow of voluntary cough) between three groups
  4. muscle activation of abdominal muscle and diaphragm during performing voluntary force
  5. performance of diaphragm under different breathing load
Conditions
COPD, COPD-like
Keywords
COPD, Diaphragm, Voluntary cough, Abdominal muscle activation
Medical subject headings
Pulmonary Disease, Chronic Obstructive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04857541
Study groupRoleWhat they receive
Health adultNot described

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Peak cough flow

    Peak coughing velocity of voluntary cough in liter/second

    Measured: baseline

Secondary outcomes (8)
  1. Respiratory muscle force

    MIP/MEP in cmH2O

    Measured: baseline

  2. Pulmonary function test

    PEF/MVV in liter/min

    Measured: baseline

  3. Pulmonary function test

    FEV1/FVC/VT in liter

    Measured: baseline

  4. Pulmonary function test

    MVV rate in breaths/min

    Measured: baseline

  5. Muscle thickness during voluntary force

    tRA/tEO/tIO/tTrA/tD in millimeter

    Measured: baseline

  6. Muscle activation during voluntary force

    aURA/aLRA/aEO/aIOTrA/aD (all the data will be collected through surface EMG and will be presented as maximal voluntary contraction in %)

    Measured: baseline

  7. Diaphragm assessment

    QB_ex/DB_ex/Sniff_ex in millimeter

    Measured: baseline

  8. Diaphragm assessment

    QB_slope/DB_slope/Sniff_slope in cm/s

    Measured: baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Apr 2021
  2. Study start11 May 2021
  3. Primary completion13 May 2021
  4. Study completion20 Apr 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case crossover
Time perspective
Prospective
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04857541
Sponsor's protocol ID
A-ER-110-051
Status last verified
Jun 2022
First submitted
15 Apr 2021
Last updated
10 Jun 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Mesquita Montes A, Maia J, Crasto C, de Melo CA, Carvalho P, Santos R, Pereira S, Vilas-Boas JP. Abdominal muscle activity during breathing in different postures in COPD "Stage 0" and healthy subjects. Respir Physiol Neurobiol. 2017 Apr;238:14-22. doi: 10.1016/j.resp.2017.01.001. Epub 2017 Jan 7.

    PubMed 28082171
  • Mesquita Montes A, Crasto C, de Melo CA, Santos R, Pereira S, Vilas-Boas JP. The effect of inspiratory and expiratory loads on abdominal muscle activity during breathing in subjects "at risk" for the development of chronic obstructive pulmonary disease and healthy. J Electromyogr Kinesiol. 2017 Jun;34:50-57. doi: 10.1016/j.jelekin.2017.03.005. Epub 2017 Mar 31.

    PubMed 28399443

Questions about this trial

What is this clinical trial studying?

An observational study of COPD and COPD-like, run by National Cheng-Kung University Hospital at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 10 Jun 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Peak cough flow (time frame: baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04857541, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jun 2022.

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