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MikeyFXD35
21-08-2009, 07:46 PM
Just wanted to throw this out there. While being on my cycle I have been logging my body comp pretty regularly. I use a scale that has the water percentage as well. I know they are not accurate but they are constant so take this for what is worth.

I have notice that no matter how much water I drink, the percentage stay with in 1%. I thought maybe it was the scale so after a hot day at the lake with no water I did a measurement and in was down 3% percent so does change.

If I drink 4 litres of water or 2 litres of water the percentage is pretty much the same, actually it is higher with 2 litres. I find I piss a lot more at the 4 litres but it doesn't increase the percentage.

I'm not saying how much is best, just putting this out there for discussion

nisser
21-08-2009, 08:12 PM
How do these scales work? You just stand on it? If that's true, how could it possibly know the water composition. Think about it; then take a shit on your scale and call it a day.

macka
21-08-2009, 09:30 PM
Just wanted to throw this out there. While being on my cycle I have been logging my body comp pretty regularly. I use a scale that has the water percentage as well. I know they are not accurate but they are constant so take this for what is worth.

I have notice that no matter how much water I drink, the percentage stay with in 1%. I thought maybe it was the scale so after a hot day at the lake with no water I did a measurement and in was down 3% percent so does change.

If I drink 4 litres of water or 2 litres of water the percentage is pretty much the same, actually it is higher with 2 litres. I find I piss a lot more at the 4 litres but it doesn't increase the percentage.

I'm not saying how much is best, just putting this out there for discussion

4 litres? Thats it? I drink 7 to 8 litres a day. I work in a hot environment, but that being said, I feel shitty if I don't get at least 4l of water.

MikeyFXD35
21-08-2009, 09:40 PM
How do these scales work? You just stand on it? If that's true, how could it possibly know the water composition. Think about it; then take a shit on your scale and call it a day.

Bioelectrical Impedance.
Tanita uses BIA to make an indirect measurement of body composition. A safe electrical signal (50Khz, 800ľA) is sent through the body via the patented pressure-contact footpads on a scale platform. The only direct measurements that Tanita BIA makes are weight and impedance, all other values such as % body fat, Fat Free Mass, etc., are calculated.

Impedance is measured in Ohms and can be defined as the strength and speed of an electrical signal traveling through the body. BIA is based on the fact that lean muscle tissue contains high levels of water and electrolytes, and therefore acts as a conductor of an electrical signal. Fat mass is comparatively anhydrous and acts as a resistor to the flow of an electrical signal. Increasing levels of fat mass result in a higher impedance value, and correspond to higher levels of body fat.

MikeyFXD35
21-08-2009, 09:42 PM
Quote from the Mayo clinic,

if you drink enough fluid so that you rarely feel thirsty and produce 1.5 liters (6.3 cups) or more of colorless or slightly yellow urine a day, your fluid intake is probably adequate.