Science Buddies: "Ask an Expert"

Effects of Exercise: Changes in Carbon Dioxide Output
The basic chemical reaction in cellular respiration is: C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O + 36 ATP (energy)
Therefore, the change in CO2 should be dependent upon either O2 or C6H12O6.
We plan to study change in CO2 first by changing O2 then by changing C6H12O6
My variation of this project is: Will the change in oxygen and glucose affect the rate of carbon dioxide during exercise?
We plan to test this by showing:
Read more: sextoy, am dao gia
- Change in Oxygen shown by:
1) Gym vs Park:
[5 minutes of running in the park
5 minutes of treadmill in a gym (closed space)]
2) Aerobic vs Anaerobic Exercise (Running vs. Weightlifting)
- Change in Glucose shown by:
1) 5 minute exercise in three situations:
After meal
Without meal
After a quick snack
- Also, Athlete vs. Non-Athlete:
Do conditioned athletes take longer to start producing additional CO2 with moderate exercise? Do they recover to normal levels faster after exercise?

What you are attempting to do is a lot more difficult then it seems. First, I would be especially concerned about the relative fitness levels og your test subjects. Individuals who have a higher level of cardiovascular fitness.
Second, how do you know, or do you plan to determine the concentrations of CO2 and O2 in a gym (your closed space) vs. outdoors.
Third, How will you determine the change in glucose in your participants? Are you planning on drawing blood and doing glucose analysis? Any tests that involves human subjects needs lots of approval at different levels.
It's a neat idea, but boy, it gets complicated. Do you have the facilities to do it with mice?