The purpose of this experiment was to see how exercising for a minimum of thirty minutes a day for at least four days a week altered vital capacity in people. Exercising for this amount was chosen to be studied because there have been many who have benefited from more exercise. The question to be answered was if this amount of exercise increased or decreased vital capacity. The hypothesis was vital capacity will increase in response to exercising for a minimum of thirty minutes a day for at least four days a week. This prediction was made because it was understood that exercise increased cardiovascular capacity.
Materials and Methods:
The experiment was performed using a spirometer. The vital capacity was obtained when the subjects inhaled as much air as possible, and then exhaled everything in their lungs into the spirometer. The subjects did not inhale into the spirometer. This was repeated three times by each subject and then the numbers were averaged. This experiment included ninety subjects, seventy-nine females and sixteen males. The total number of people who exercised was twenty-five, twenty-two females and …show more content…
The average vital capacity of the subjects who exercised was 3710ml. The average vital capacity of the subjects who did not exercise was 3550ml.
Discussion:
The results of the experiment supported the hypothesis. Possible experimental errors included subjects lied about how much they exercised, subjects did not inhale and exhale fully, and the numbers were read incorrectly on the spirometer. For future research, subjects should be monitored for how much they exercise, newer devices should be used, and the subjects should be watched to see if they fully inhaled and exhaled. In conclusion, the experiment showed exercising for a minimum of thirty minutes a day for at least four days a week increased vital capacity in