Effect of Diaphragmatic Muscle Strengthening in Supine Lying Position on Chest Expansion and Peak Expiratory Flow Rate among High Body Mass Index UniKL RCMP Students.

Introduction: Diaphragm is a major inspiratory respiratory muscle, and its role in the respiratory system cannot be overstated in terms of its importance to healthy breathing. A loss of muscle power in the diaphragm, which prevents it from generating the essential pressure for optimal ventilation, is what medical professionals refer to as a diaphragmatic defect. Methods: A total of 30 participants were selected among high BMI students at UniKL RCMP and put into two groups through convenient random sampling. Participants will be divided into two groups. The first experimental group consisted of 15 participants for diaphragmatic strengthening exercises. Another control group consists of 15 participants for diaphragmatic breathing only. The differences between two intervention groups, the control group and the experiment group, Eight weeks of the experiment were conducted to monitor changes. Results: The findings reveal that the chest expansion pre-post axillary for the control group (mean -0.23, SD 0.56), pre-post lateral costal (mean -0.43, SD 0.49), and pre-post diaphragm are significantly different from one another (mean -0.70, SD 0.45). For experiments, pre- and post-axillary (mean -0.33, SD 0.12), pre-post lateral costal (mean -0.53, SD 0.17), pre-post diaphragm (mean -0.63, SD 0.09). Conclusion: Diaphragmatic breathing exercise paired with diaphragmatic muscle strengthening exercise has the potential to promote chest expansion in people with a high body mass index (BMI). According to these results, those who have decreased chest expansion should engage in exercises that focus on diaphragmatic breathing to enhance chest expansion. [ABSTRACT FROM AUTHOR]