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Plumonary function test in swimmers and non-swimmers- a comparative study

Authors:Vaithiyanadane.V, Sugapriya.G, Saravanan.A, Ramachandran.C
Int J Biol Med Res. 2012; 3(2): 1735 – 1738  |  PDF File

Abstract

Background: The main function of the lung is gas exchange which can be assessed in several ways. Spiro meter measures the flow and volumes of inspired and expired air, and does not provide information about gas exchange. An arterial blood gas sample is the most simple way to assess pulmonary gas exchange. Aims and objectives: To compare the diffusing lung capacity among swimmers and non-swimmers and to test the hypothesis that ventilatory drive is modified by swimming. Materials and methods: In this study 20 subjects aged between 19-35 with 2-5 years swimming experience were taken and 20 controls who were in the same age group in SRM medical college were included after obtaining ethical clearance and consent. ‘Easy one pro Spiro meter’ was used to find out the diffusing lung capacity. Results: Statistically parameters were analyzed by students paired t’ test .There was no significant difference in age, weight, height, BMI between swimmers and non-swimmers. But there was a significant difference in mean and standard deviation of diffusing lung capacity parameter. Mean and Standard deviation of swimmers and non-swimmers was (23.17±6.575) (14.72±2.912), p-value <0.000, which is more significant. Conclusion: The result shows a significant difference in diffusing lung capacity in swimmers compared to non-swimmers since O2 utilization for the muscle is higher in swimmers. Swimmers have greater diffusing lung capacity than non-swimmers probably due to increase in the number of alveoli which acts as a predictor of performance.