Thursday, February 08, 2007

Erg Score Weight Adjustments

I've posted on erg weight adjustments before, but really just pointed to the Concept II calculator. Alan Thomas at Erg Science posted on adjustments today, but went further into the math and also explored two other formulas. He then posted a spreadsheet using Zoho Sheet that you can download and which allows you to calculate adjustments en masse. It's some good information and a nice tool.

1 comment:

Aaron Benson said...

The classic formula for weightlifting actually takes body mass to the 2/3 power, not 1/3. This has to do with the square-cube ratio: as length increases by a factor of 2, volume increases by a factor of 3.

So for erging, good weight adjustments can use this formula:

Watts / Kg^(2/3)