Effect of Slow Deep Breath on Chest Expansion, Pulmonary Function, and Heart Rate Recovery in Obese Persons Aged between 18 and 35 Years
Keywords:
Obesity, Force Vital Capacity, Heart Rate Recovery, Slow Deep BreathingAbstract
The objective of this randomized control trial research was to examine the change in chest expansion, pulmonary function, and heart rate recovery among obese persons after four weeks of diaphragmatic breathing exercise training. Participants were 19 obese persons, aged 18-35 years old, divided into two groups using stratified sampling. The control group included nine participants who were required to maintain daily health behaviors for four weeks. The intervention group consisted of 10 participants who practiced diaphragmatic breathing exercise training (DBE) six times in one minute, rested one minute, practiced 10 minutes per time, and practiced every day for four weeks. Both groups measured the change in chest expansion, predicted forced vital capacity (FVC), predicted forced expiratory volume in one second (FEV1), predicted ratio of the forced expiratory volume in one second to the forced vital capacity (FEV1/FVC), predicted maximum voluntary ventilation (MVV), and heart rate recovery (HRR) before and after the experiment. The data were analyzed using a two-way analysis of variance (Two-way ANOVA).
The results showed that when comparing the results before and after the 4-week experiment, the intervention group had a statistically significant increase in the mean chest expansion (before the experiment: Mean ± SEM=2.2 ± 0.32 cm, after the experiment: Mean ± SEM= 2.95 ± 0.24 cm, p-value = 0.001). The control group had a statistically significant decrease in %predicted FVC (before the experiment: Mean ± SEM=101± 3.45, after the experiment: Mean ± SEM= 96.70 ± 3.32, p-value = 0.001). There were no statistically significant differences in the changes in %predicted FEV1/FVC, predicted MVV, and HRR values in both the experimental and control groups. It was concluded that practicing diaphragmatic breathing exercises for four weeks effectively enhanced chest expansion without changing pulmonary function and autonomic imbalance in obese persons in early adulthood.
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