Breathing Performance of Healthy Young Adult
Study Details
Study Description
Brief 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. 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.
Detailed Description
The specific aims of the study are:
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difference of respiratory muscle performance between three groups
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the correlation between respiratory symptom and pulmonary functional test
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difference of functional respiratory performance (peak cough flow of voluntary cough) between three groups
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muscle activation of abdominal muscle and diaphragm during performing voluntary force
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performance of diaphragm under different breathing load
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Health adult
|
Outcome Measures
Primary Outcome Measures
- Peak cough flow [baseline]
Peak coughing velocity of voluntary cough in liter/second
Secondary Outcome Measures
- Respiratory muscle force [baseline]
MIP/MEP in cmH2O
- Pulmonary function test [baseline]
PEF/MVV in liter/min
- Pulmonary function test [baseline]
FEV1/FVC/VT in liter
- Pulmonary function test [baseline]
MVV rate in breaths/min
- Muscle thickness during voluntary force [baseline]
tRA/tEO/tIO/tTrA/tD in millimeter
- Muscle activation during voluntary force [baseline]
aURA/aLRA/aEO/aIOTrA/aD (all the data will be collected through surface EMG and will be presented as maximal voluntary contraction in %)
- Diaphragm assessment [baseline]
QB_ex/DB_ex/Sniff_ex in millimeter
- Diaphragm assessment [baseline]
QB_slope/DB_slope/Sniff_slope in cm/s
Eligibility Criteria
Criteria
- Health subject
Inclusion Criteria:
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aged 20 years or above
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currently not being diagnosis as COPD
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less than 4 times/week of aerobic exercise
- COPD-like subject
Inclusion Criteria:
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aged 20 years or above
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currently not being diagnosis as COPD
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presented of COPD symptoms (coughing, sputum production and dyspnea), last for 3 months and more than 2 years
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score more than 1 on modified Medical Research Council (mMRC) or COPD Assessment Test (CAT)
- COPD subject
Inclusion Criteria:
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aged 20 years or above
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currently being diagnosis as COPD
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haven't participated in any pulmonary rehabilitation program in the past three months
Exclusion Criteria:
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Untreated comorbidities for COPD
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Postural asymmetries (Scoliosis, length discrepancy of the lower limbs or other previous surgical history of spine)
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Chronic nonspecific lumbopelvic pain
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Gynecological or abdominal surgery in the previous year
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Pregnancy or post-delivery in the previous 6 months
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Neurological or inflammatory disorders
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Any conditions that may interfere with the data collection
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | National Cheng Kung University Hospital | Tainan | Taiwan | 704 |
Sponsors and Collaborators
- National Cheng-Kung University Hospital
Investigators
- Principal Investigator: Ching-Hsia Hung, PhD, Department of physical therapy, National Cheng Kung University
Study Documents (Full-Text)
None provided.More Information
Publications
- 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.
- 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.
- A-ER-110-051