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Inspiratory Muscle Activation Patterns in Patients With Chronic Obstructive Pulmonary Disease

NCT03522376 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2019-02-12

No results posted yet for this study

Summary

Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory lung disease that causes obstructed airflow from the lung, characterized by chronic cough, dyspnea, and sputum production. Inspiratory muscle weakness has been shown in patients with COPD, and inspiratory muscle training (IMT) is commonly applied to these patients. However, the optimal prescribed intensity of IMT for patients with COPD remains unclear. In healthy adults the accessory muscles would be recruited to assist ventilation with increasing ventilatory demand, but the activation pattern of accessory muscles has not been studied in patients with COPD during loaded condition such as IMT. Therefore, the purpose of this study is to exam diaphragm and sternocleidomastoid muscle activation using surface electromyography during loaded inspiratory muscle tests with intensity of 30% and 50% of maximal inspiratory pressure.

Conditions

Interventions

OTHER

Loaded inspiratory muscle test

Loaded inspiratory muscle tests will be set at 30% and 50% of maximal inspiratory pressure. The orders of the two loaded test conditions will be conducted in random order with at least 24 hours separation. This is an observational study. Subjects will perform only 15 breaths with each loaded test condition to exam the performance of their inspiratory muscles. Loaded inspiratory muscle test is not for training.

Sponsors & Collaborators

  • National Taiwan University Hospital

    lead OTHER

Principal Investigators

  • Li-Ying Wang, Phd · National Taiwan University

Eligibility

Min Age
20 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-04-24
Primary Completion
2018-12-20
Completion
2018-12-20

Countries

  • Taiwan

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03522376 on ClinicalTrials.gov