An interventional study of diaphragmatic breathing exercise and pursed lip breathing exercise in Asthma Chronic, sponsored by Ain Shams University. Completed at 1 site in Egypt. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2026-03-17.
Sponsored by Ain Shams University · Not applicable, Interventional, and Treatment
The goal for this clinical trial was to compare the effectiveness of Diaphragmatic Breathing and Pursed-Lip Expiration Exercises in improving lung functions {the Peak Expiratory Flow Rate (PEFR) and Forced Expiratory Volume in 1- second (FEV1)} and Chest Expansion in Egyptian outpatient adults with bronchial asthma.
The research questions were:
All the participants were classified into 2 groups:
Group1:
Diaphragmatic Breathing Exercise training was offered for participants to complete the 8-weeks exercise program (each session lasted about 20 minutes twice daily for 5 days per week).
Group2:
Pursed Lip Breathing Exercise training was offered for participants to complete the 8-weeks exercise program (each session lasted about 20 minutes twice daily for 5 days per week).
The two main parameters which were assessed initially and after completion of the 2-month exercise program were:
Participants were enrolled from Outpatient Chest Clinic in Ain Shams University Hospitals.
After checking for inclusion and exclusion criteria and signing the informed consent form the following was carried out.
After enrollment of the participants from outpatient chest clinic, their education and interviewing were conducted in a private comfortable room near to chest clinic taking the time for discussion, understanding the 2- month training program and practicing the exercises techniques through first visit, bimonthly visits and the last visit. These visits were the same for the two groups with a difference in the exercise technique (explained in detail in a separate paragraph for each group), these visits included:
A. First visit:
Encouragement of the participants for adherence to exercise program through:
B- Bimonthly Follow up visits (Three follow up visits along the 2-month exercise program):
C-The last visit:
3,921 studies on the registry are indexed under Asthma; 506 are open to participants now.
This study's enrollment of 60 is below the median of 83 across 2,751 interventional studies indexed under Asthma.
Browse Asthma studies →Ain Shams University is the lead sponsor of 1,876 studies on the registry; 423 are open to participants now.
Of its 32 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Diaphragmatic Breathing Exercise training was offered for participants to complete the 8-weeks exercise program (each session lasted about 20 minutes twice daily for 5 days per week). Relaxation and comfortable positioning of the participant with full support to back and head and relaxation of the abdominal wall (fowler's position). One hand of the participant placed on the rectus abdominis muscle just inferior to the anterior costal margin and the other hand on chest wall keeping the shoulders relaxed and upper chest quiet during breathing in slowly and deeply through the nose following the abdomen to rise with subsequent slow expiration through pursed lip for three or four times then rest. Three or four sets were applied in 20 minutes exercising session.
Behavioral: diaphragmatic breathing exercise
Pursed-Lip Expiration Exercise training was offered for participants to complete the 8-weeks exercise program (each session lasted about 20 minutes twice daily for 5 days per week). Closing the mouth while breathing in slowly through the nose for two counts while keeping shoulders and neck relaxed followed by expiration using pursued lips (as if they mimic whistling) for four counts. Three or four sets were applied in 20 minutes exercising session.
Behavioral: pursed lip breathing exercise
Diaphragmatic Breathing Exercise training was offered for participants to complete the 8-weeks exercise program (each session lasted about 20 minutes twice daily for 5 days per week). Relaxation and comfortable positioning of the participant with full support to back and head and relaxation of the abdominal wall (fowler's position). One hand of the participant placed on the rectus abdominis muscle just inferior to the anterior costal margin and the other hand on chest wall keeping the shoulders relaxed and upper chest quiet during breathing in slowly and deeply through the nose following the abdomen to rise with subsequent slow expiration through pursed lip for three or four times then rest. Three or four sets were applied in 20 minutes exercising session.
Pursed-Lip Expiration Exercise training was offered for participants to complete the 8-weeks exercise program (each session lasted about 20 minutes twice daily for 5 days per week). Closing the mouth while breathing in slowly through the nose for two counts while keeping shoulders and neck relaxed followed by expiration using pursued lips (as if they mimic whistling) for four counts. Three or four sets were applied in 20 minutes exercising session.
Changes in FEV1
Changes in FEV1 were compared within each group before and after intervention by the breathing exercises and between the two groups
Time frame: 8 weeks
Changes in PEFR
Changes in PEFR were compared within each group before and after intervention by the breathing exercises and between the two groups
Time frame: 8 WEEKS
Changes in chest expansion
Changes in chest expansion were compared within each group before and after intervention by the breathing exercises and between the two groups
Time frame: 8 weeks
Plan to share: No
No publications or documents are linked to this record.
This study is completed, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Ain Shams University