2009 Mileage

Purdey

"Race Across The Sky"

posted: 7/17/2009 at 2:43 AM
modified: 7/17/2009 at 2:45 AM

Quote from Purdey on 7/16/2009 at 3:13 AM:

My digital scales purport to measure body fat - currently at 16% for me!!!

I'm doubting their accuracy a bit - this morning my body fat was 14.4%. I know I haven't lost 1.6% body fat in 24hrs - does your level of hydration have an effect on how digital scales measure the body fat %?

BTW - the online calculator has me at 10.8%. Beware - I suspect that it may tend to measure your % a bit low - I am certain that I don't have 10% BF. This is probably especially true if you tend to have a slim waist for your build.

What was the secret, they wanted to know; in a thousand different ways they wanted to know The Secret. And not one of them was prepared, truly prepared to believe that it had not so much to do with chemicals and zippy mental tricks as with that most unprofound and sometimes heart-rending process of removing, molecule by molecule, the very tough rubber that comprised the bottoms of his training shoes. The Trial of Miles; Miles of Trials

UltraFlynn

posted: 7/17/2009 at 4:43 AM

Hydration levels does effect the readout on those scales. It's measuring conductivity so the more water you have in you it will read higher.

I've got a set of those scales at home and I don't trust them at all. Mine reads 5% all the time ..... until the wife gets on. Smile

Purdey

"Race Across The Sky"

posted: 7/17/2009 at 5:49 AM

I thought as much!

I will try to rehydrate today and test again tomorrow. Yesterday's reading may have been low due to 3 runs which probably left me a bit dry.

What was the secret, they wanted to know; in a thousand different ways they wanted to know The Secret. And not one of them was prepared, truly prepared to believe that it had not so much to do with chemicals and zippy mental tricks as with that most unprofound and sometimes heart-rending process of removing, molecule by molecule, the very tough rubber that comprised the bottoms of his training shoes. The Trial of Miles; Miles of Trials

Jerry-

posted: 7/17/2009 at 7:12 AM

I went to the gym the other month when I was using crutches and cycled for an hour and was absolutely dripping by the end. As an experiment I used one of the BMI/Fat % machines and it came up with some really off the scale values. I put it down to hydration levels.

I don't hold much credence to these machines but they are indicative

Jerry
A runners blog-updated daily

UK Ultra Runners

2009 Mileage (Read 513 times)