ABSTRACT
Exercise represents a state of physical exertion of the body and it is associated with extensive alterations in respiratory system. The respiratory mechanism operate in integrated fashion to meet the oxygen demands of the tissues during exercise. Measurement of pulmonary functions before and after exercise will provide useful information about the functional reserve capacity of lungs both in healthy person's and in patients with COPD (Chronic Obstructive Pulmonary Disease). Functional exercise is known to improve physical fitness and to reduce mortality from chronic ailments. The physiological actions of functional exercise on the lungs increase the need of oxygen supply to muscle and blood (increase ventilation), enhancing lung capacity, optimize the efficiency of gas exchange, strengthen the respiratory muscle, improved in airway clearance and lung functions, to reduce resting respiratory rate and also increases tolerance to breathlessness. The specific objective of this study is to assess the effect of the forced vital capacity (FVC), Forced expired volume in one sec (FEV1), FEV1 as a percentage of FVC (FEV1/FVC), peak expiratory flow (PEF), rate of flow of forced expiratory at 25% (FEF25) and 75% (FEF75) and the average rate or airflow of forced expiratory between 25% and 75% (FEF25-75) in pre and post functional exercise for bother obese and normal individuals. The aim of this study was to investigate the effect of functional exercise in pulmonary function in obese and normal individuals. Methodology: The study population of subject used were 80 divided into 40 for each category from age 18-28 years. Procedure for six Minute work test (6MWT) test was conducted in a controlled environment with a marked corridor of 30meter calibrated at 3 meter. The participant was instructed to walk to their own pace, covering as much distance as possible within six minutes. Resting was allowed, but the Stopwatch continued to run. Spirometry procedures is a follows: 1. The participants sat upright on the chair provided and relaxed. The participants used a nose clip to prevent escape of air. 3. The participant placed the mouthpiece of the Spirometer between their lips and closed it tightly. 4. The participant took a deep breath and exhaled forcefully as possible for six seconds. 5. The valuesb(such as FVC, FEV1, FEV1/FVC%, PEF, FEF25, FEF75 and FEF2575) were recorded on the record sheet. 6. The procedures were repeated thrice. Statistical analysis was done using Graph-pad prism statistical software version 8.1. Results were presented as mean ± standard error of mean (SEM). Paired student T-test was used to compare the mean of pre-exercise and postexercise values and a P value <0.05 was considered as statistically significant. The result of this study has no significant change in post-exercise when compares with pre-exercise in adult young obese and normal individuals. Based on the result obtained, it was observed that the Six-minute work test has no significant change on pulmonary function test parameter (such as FVC, FEV1, FEV1/FVC%, PEF, FEF25, FEF75 and FEF2575) in obese and normal weight individuals.
