The effect of using the inspiratory muscle training device (IMT) on the thickness and excursion of the diaphragm of COPD patients

Investigating the effect of using the inspiratory muscle training device (IMT) on the thickness and excursion of the diaphragm of COPD patients undergoing lung rehabilitation

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20200611047727N7

Enrollment

221

Registered

2025-06-23

Start date

2025-07-23

Completion date

Unknown

Last updated

2025-07-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic obstructive pulmonary disease. Other chronic obstructive pulmonary disease

Interventions

Intervention 1: Intervention group: Patients are hospitalized for 2 weeks and during this time they perform daily pulmonary rehabilitation exercises including diaphragmatic breathing, pursed lip breat

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Age over 18 years Diagnosis of COPD based on GOLD

Exclusion criteria

Exclusion criteria: Hemoptysis embolism lung cancer pneumothorax acute cardiovascular problems diaphragmatic paralysis severe dyspnea preventing testing patient's unwillingness to continue participating in the research project

Design outcomes

Primary

Measure	Time frame
Diaphragmatic excursion. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Ultrasound.;Diaphragmatic thickness. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Ultrasound.;Forced vital capacity (FVC). Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Spirometry.;Forced expiratory volume in one second (FEV1). Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Spirometry.;Predicted FVC. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Spirometry.	—

Measure

Time frame

Diaphragmatic excursion. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Ultrasound.;Diaphragmatic thickness. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Ultrasound.;Forced vital capacity (FVC). Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Spirometry.;Forced expiratory volume in one second (FEV1). Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Spirometry.;Predicted FVC. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Spirometry.

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Secondary

Measure	Time frame
Six minute walk test distance. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Six minute walk test.;Dyspnea. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Based on modified medical research council dyspnea scale questionnaire.;Quality of life. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Based on the St. George questionnaire.	—

Measure

Time frame

Six minute walk test distance. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Six minute walk test.;Dyspnea. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Based on modified medical research council dyspnea scale questionnaire.;Quality of life. Timepoint: At the beginning of hospitalization, after two weeks (at discharge), and also after 6 weeks of tele-rehabilitation. Method of measurement: Based on the St. George questionnaire.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactMasoumeh Zoghali

Shahid Beheshti University of Medical Sciences

masoumezoghali@gmail.com+98 21 2610 5050

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026