|   no carbonation? | fzn12s
Jan 10, 2003 8:16 PM | | It seems wierd but when I don't drink anything carbonated, I can ride farther on the same intensity. Usually for 24hours before a ride.
Anyone heard of this before? |
| yeah | Radar MCM #35
Jan 10, 2003 8:59 PM | | I've heard from many sources, most of which I consider credible, that carbonation interferes with oxygen somehow. Either oxygen in your blood or something. I give up another type of food every 6 months or so, and I gave up carbonation a while ago and haven't really missed it. SoBes are better than coke any day :)
Radar MCM #35 |
| that sort of makes sense... | Patchito
Jan 12, 2003 9:55 AM | | If you think about it. After all, the carbonation in soft drinks is carbon dioxide, the stuff you exhale during respiration. I could see how some CO2 present in the stomach could be absorbed into the bloodstream, displacing oxygen. Just theory, but an interesting question. |
| I believe | xctearor
Jan 12, 2003 3:14 PM | | that both CO2 and O2 bind to hemoglobin, however I remember discussing this with my EXS PHYS professor and he noted that CO2 has an affinity to hemoglobin four times that of O2, which is why smoking is so horrible...it transports CO2 to your lungs and bloodstream instead of fresh O2 |
| I believe | sebring
Jan 12, 2003 5:43 PM | | Actually CO2 does attach to hemoglobin, but O2 has a greater affinity to it. It's CO, carbon monoxide, that has a greater affinity to hemoglobin than O2. CO is a byproduct of incomplete combustion. I don't think drinking soda would do that much to you. The body is extremely efficient in balancing and maintaining homeostasis. Any excess CO2 from the carbonation should be removed within a couple minutes. I think the fact that it would cause bloating in the stomach by keeping it under pressure would cause discomfort more than anything else. |
| I believe | Andy12
Jan 13, 2003 3:51 AM | | You are quite correct carbon dioxide in fizzy drinks will have no more effect other than a little bloating of the stomach, one drink will have almost no effect whatsoever. Even if you were to drink several litres of fizzy drink the day befor a ride or race it would have no effect. If you notice a drop in performance it is to do with something unrelated or is psychological. Working hard you exhale around 2-3 litres of CO2 per minute, the relatively trivial quantity taken into your stomach from your drink will have no effect whatsoever on your performance. |
| PERHAPS | fzn12s
Jan 13, 2003 8:21 AM | | Perhaps you are right: it may be the caffene, sugar, etc that has an affect. There is something, however.
Once again, science fails to explain what my body is telling me.
Thanks for everyone's input. |
| PERHAPS | Andy12
Jan 13, 2003 1:19 PM | | Caffiene is a performance enhancer (probably) and the sugar will only help you. Are you sure thats the only thing different you did, ate or drank? Was there a little extra headwind, was it a degree or two warmer, your tyres a few psi softer. Thats the problem in analysing performance there are so many confounding variables contributing. With the exception of something psychological (e.g. you relate a previous bad experience or performance to drinking fizzy drinks anf now percieve it will affect you)it is highly unlikely the drink caused your drop in performance. |
| Actually.... | fast
Jan 21, 2003 12:35 PM | | Gasses cannot diffuse accross the stomach membrane! That is why you have to burt (or fart eventually). It doesnt matter if you drink, oxygenated or carbonated beverage, it wont get into your blood.
The main downfall of soda is the sugar, which increases insulin and depleats your glycogen stores quickly, and also reduces the strength of your immune system. It also has phosphoric acid which removes calcium from your body, thus slightly weakening your bones. |
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