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Clinical Trial Summary

The mechanical alterations related to the overload of respiratory muscles observed in people with persistent asthma can lead to the development of musculoskeletal dysfunctions. Moreover, the produced lung hyperinflation and high lung volumes in the asthma crisis put the diaphragm at a disadvantage in terms of its length-tension curve and lowered its excursion and capacity to generate force. According to a preliminary study, manual therapy (MT) techniques can be used as adjunctive therapy in asthma treatment. The proposed protocol is the first randomized controlled clinical trial to assess MT's efficacy on the diaphragm's ZOA in conjunction with BRE in individuals with well controlled mild moderate and severe asthma. Many musculoskeletal and respiratory outcomes will be used to investigate the under-study therapies' impact.


Clinical Trial Description

The diaphragm produces a craniocaudal movement of its dome during contraction, making it the most crucial breathing muscle due to its unique anatomical structure and contribution to minute ventilation (60%-80%). Patients with (COPD) or asthma often develop diaphragmatic dysfunction (DD). This DD is related to the mechanical linkage between its various parts, placing it at a mechanical disadvantage to the muscle fibers. The capacity of the diaphragm to elevate and extend the lower rib cage at the level of the zone of apposition is impaired by this pathological change. This change increases the work of breathing and weakens the diaphragm. People with moderate or severe asthma may experience pulmonary overstretching, which can lead to functional issues. How physiotherapy may increase the mechanical efficiency of the thoracic cage and the effectiveness of the respiratory muscles during breathing has been the main focus of studies in recent decades. Although the use of specific diaphragm MT techniques does not yet have sufficient research documentation, recently published studies reported that there are indications to support their positive effect on pulmonary rehabilitation. The efficacy of diaphragm MT methods has not been investigated in adults with asthma, although it has been investigated in pediatric asthma. The effect of diaphragms MT techniques in combination with BRE has not been investigated. The present study hypothesizes that the combination of the mentioned physiotherapy techniques will contribute positively to the length-tension relationship and mobility of the diaphragm and chest expansion in patients with asthma. Secondary positive improvements are expected in the domain of functionality, (b) the feeling of dyspnea, (c) disease control and (d) abnormal respiratory pattern. The amplification of the above in people with asthma using respiratory standards and applying diaphragm mobilization techniques will contribute to better disease management. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05709054
Study type Interventional
Source University of West Attica
Contact DIMITRIOS TSIMOURIS, PhD candidate
Phone 6987415996
Email dtsimouris@uniwa.gr
Status Recruiting
Phase N/A
Start date January 1, 2023
Completion date January 1, 2024

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