Kids Projects
 

Study of Asthma and Swimming

The Objective : This project was designed to answer the question whether swimming competitively is helpful in reducing the effects of asthma in children aged 11 to 13. Some research suggests that the controlled breathing, cardiovascular fitness, and moist environment involved in swimming may improve lung function, even in asthmatics. Other research, though, is showing that chlorine exposure may be causing asthma or worsening its effects. I wanted to find out which was true.

Methods/Materials

A water displacement method was used to measure the lung capacity of the subjects.

This included a one-gallon milk jug, marked at 250ml levels, flexible irrigation tubing, an elbow coupler and a straight coupler, a large plastic basin of water, and a bathroom scale and measuring tape to find the body surface area of each subject.

The students were asked to take in a deep breath and blow the air completely out of their lungs into the tube which was placed inside the jug, submerged in water.

The volume of water that was forced out was recorded and the process repeated two more times.

The results were compared to predicted lung volumes for the person, based on body surface area.

Results

The results showed that swimming does appear to improve the lung capacity of the swimmers, even when asthma is present.

58% of swimmers performed above their predicted capacities, but only 7% of non-swimmers did. 87% of asthmatic swimmers performed above the prediction, and only 33% of asthmatic non-swimmmers did.

Conclusions/Discussion

The sport of competitive swimming appears to have a beneficial effect on the lung function of middle school students, even if they have asthma.

The test was focused on comparing the lung capacity of swimmers, both with and without asthma, with non-swimmers, with and without asthma.

Science Fair Project done By Bethany J. Johnson

 

 

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