Research Total Lung Capacity: maximum volume to which the lungs can be expanded with the greatest possible effort How age affects lung recovery and found that a person’s total lung capacity (TLC) increases until puberty where it reaches its height. From there on, the TLC begins to decrease. How exercise affects lung capacity and found that exercise creates a larger need for oxygen in the lungs so in order to obtain enough oxygen, lung capacity increases when a person exercises. Breath out is known as tidal volume Other factors that may affect lung capacity: whether a person smokes or not, amount of a exercise a person performs, and the health of a person
Hypothesis The hypothesis was: if there will be an evident difference between the lung capacity of younger volunteer compared to older volunteers, then the younger volunteers will have a quicker lung recovery.
Procedure Sterilized, disposable mouth cover is placed on the lung capacitor Volunteer exhales into the capacitor and lung volume is recorded and saved. Volunteer performs the 10 jumping jacks. After the exercise, volunteer exhales into the capacitor again and the lung volume was again recorded and saved. Percent change was calculated Procedure repeated with each volunteer
Variables Used Constants: Time, Temperature, Lung Capacitor, Computer, Exercise Controls: Base Lung Volume Independent: Age of Volunteer Dependent: Trial Lung Volumes
Lung Recovery Data TeensAdults 41.165.9 53.9191.9 75.5100 105.1 71.4103.09 89.613.09 10030.94 1053.3 Average: 67.687582.915 Standard Deviation: 29.3001893152.21628338 TeensAdults
Conclusions The hypothesis was that if there will be a evident difference between the lung capacity of younger volunteer compared to older volunteers, the younger volunteers group will have a quicker lung recovery. This hypothesis was not supported because there was no significant difference between the rate of lung recovery in the younger volunteers and the older volunteers. The ways this experiment could have been improved include using more volunteers, having a larger range of age groups, and/or having the volunteers perform more jumping jacks
Sources "Lung Capacity - Google Search." Google. Web. 13 Feb. 2011.. "Measuring Lung Capacity." The Biology Corner. Web. 13 Feb. 2011.. Life Science Glossary. Web. 13 Feb. 2011..
Thanks! I would like to thank all my volunteers for being apart of my experimentation and I would also like to thank all my sources of information. Thank you for listening! If you have any questions I’d be happy to answer them!