Author: Maren Van der Veken
Supervisor: Carmen de Paepe
Background: The effects of manual techniques on the diaphragm and the effects of breathing exercises concerning the forced vital capacity (FVC) of the lungs have been studied. However, the two treatments have not yet been compared.
Objective: The aim of this study is to compare the effect of manual techniques on the diaphragm with breathing exercises regarding the FVC of the lungs.
Material and Methods: Forty-six male and female, non-smoking, and healthy subjects between 18 and 50 years old participated in this study. The subjects were randomly divided into two groups: one for three breathing exercises (BE) and one for the manual techniques (MAN). The FVC before and after the intervention was measured using a spirometer. The statistical calculations were performed by the Shapiro Wilk test followed by a paired or unpaired t-test or a Wilcoxon test to compare all results. The P-value for significance was set at 0.05.
Results: No significant difference in FVC was found when comparing the results of both interventions. Likewise, no significant difference was found when comparing the FVC before and after the breathing exercises. In contrast, the results of the comparison of the FVC before and after manual techniques on the diaphragm showed a significant difference.
Conclusion: This study does not show a significant difference in FVC when comparing the results of manual techniques on the diaphragm with breathing exercises. More studies concerning this subject should be carried out to determine which intervention is more effective.