Key result
Diaphragmatic and pursed-lip breathing boosts paretic respiratory muscle activation ~37% in chronic stroke patients.
Why the study?
The effects of inspiratory diaphragm breathing exercise and expiratory pursed-lip breathing exercise on respiratory muscle activation in chronic stroke patients were not well established.
Do inspiratory diaphragm breathing and expiratory pursed-lip breathing exercises improve respiratory muscle activation and pulmonary function in chronic stroke patients?
RCT (n=30)
Open-label
Randomly assigned
No
Do inspiratory diaphragm breathing and expiratory pursed-lip breathing exercises improve respiratory muscle activation and pulmonary function in chronic stroke patients?
Absolute Event Rate: 143.1% vs 104.2%
p-value: p=<0.05
Inspiratory diaphragm and expiratory pursed-lip breathing exercises can induce positive effects on respiratory muscle activation and pulmonary function in chronic stroke patients.
Hypothesis-generating for breathing exercises in chronic stroke rehab; larger trials needed before any practice consideration.
[Purpose] The purpose of this study is to examine the effects of inspiratory diaphragm breathing exercise and expiratory pursed-lip breathing exercise on chronic stroke patients' respiratory muscle activation. [Subjects and Methods] All experimental subjects performed exercises five times per week for four weeks. Thirty chronic stroke patients were randomly assign to an experimental group of 15 patients and a control group of 15 patients. The experimental group underwent exercises consisting of basic exercise treatment for 15 minutes and inspiratory diaphragm breathing exercise and expiratory pursed-lip breathing exercise for 15 minutes and the control group underwent exercises consisting of basic exercise treatment for 15 minutes and auto-med exercise for 15 minutes. The activation levels of respiratory muscles were measured before and after the experiment using MP 150WSW to obtain the results of the experiment. [Results] In the present study, when the pulmonary functions of the experimental group and the control group before and after the experiment were compared, whereas the experimental group showed significant differences in all sections. In the verification of intergroup differences between the experimental group and the control group before and after the experiment. [Conclusion] The respiratory rehabilitation exercise is considered to be capable of inducing positive effects on stroke patients' respiratory muscles through diaphragm breathing exercise and lip puckering breathing exercise.
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Seo et al. (2017) conducted an RCT in Chronic stroke (n=30). Inspiratory diaphragm breathing exercise and expiratory pursed-lip breathing exercise vs. Auto-med exercise for 15 minutes was evaluated on Paretic side upper trapezius (UT) muscle activation (%RVC) (p=<0.05). A 4-week program of inspiratory diaphragm and expiratory pursed-lip breathing exercises significantly increased paretic side respiratory muscle activation compared to control in chronic stroke patients.
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