Originally Posted by
Dave Cutter
I think your assuming way too much.
Your percentage of hydration is not static... although people to tend to have average hydration levels... they are individual and can vary greatly. As an example... I just checked my hydration/water percentage (I have a scale that does that) and I am currently 45.2% water. However... that can easily be as high as 55%. Depending on body weight... a fully hydrated body apposed to a recently sweaty body could easily vary a few pounds.
This input/output weighing doesn't really provide much information.... particularly in events that only last very limited times (2 hours) and where consummation isn't well controlled (like drinking: a ton of various non-alcoholic liquids).
Dehydrating isn't weight loss... and it is dangerous. There are plenty of posts here about how to stay proper hydrated. I'd read them over and give up on weighing water bottles.
Re: The Bold Stuff
I'm not sure that I understand here. I was just trying to get a handle on my personal water consumption (I perceive myself to be a heavy sweating type - possibly outside most norms). So how does weighing yourself before/after exercise not 'provide much information'? I guess there is a whole bunch of 02 in and CO2 out going on. Is that the point/issue? This seems to me to be exactly where one would start if a hot weather century ride was likely later this year. Can you elaborate?
BTW, the 'tons of various non-alcoholic liquids' was totally outside the measurement system and done after all exercising and weighing was complete (and was only mentioned as a way of saying that, while I was not feeling much thirst during the ride, I certainly was 10 minutes after the ride).
Thanks.
dave