Effects of training in an aero position on anaerobic power output

Triathlon Forum
1

This is a cool article

http://www.asep.org/jeponline/issue/Doc/Oct2004/PevelerV2.pdf
.

3

Really not that surprising. Train in the position you race in. I hope this study didn’t cost too much.

-C

4

I, for one, appreciate you posting this…thanks Jason…people sometimes miss the point of good-intentioned people…

5

I didn’t read the referenced Gnehm, et. al., nor Kyle papers, but it surprises me to see this paper say that those papers support the ideas that upright is more powerful, and the 90-100 watts higher output while upright would only be worth about 90 seconds in an aero-bar ridden 40K TT…presumably because of a loss of 90-100 watts? That’s a LOT of aerodynamic benefit gained for a 90 second lower time compared to the giant loss of wattage!

Thanks for posting this reference. I’ll have to go back and read the other papers to make sure I’m getting the whole message. These papers are often ripe (and sometimes rife!) with more information than provided in one conclusion sentence.

6

“but it surprises me to see this paper say that those papers support the ideas that upright is more powerful,”

A number of other papers say the exact same thing, so this is well confirmed, but this is negated by the aero advantage. An example of this would be in hill climbing for example where it’s quite obvious that sitting upright is more powerful. There is is recent article on PubMed about this.

7

The first part of that quote can’t be separated from the second part of that sentence, i.e., “…and the 90-100 watts higher output while upright would only be worth about 90 seconds in an aero-bar ridden 40K TT…presumably because of a loss of 90-100 watts?”

What I was intending to say is a comment in the introduction infers there was an aerodynamic “cost” of more than 90-100 watts. Seems pretty high to me, IOW, someone putting out 400 watts sitting relatively upright would go just as fast to put out only 300 watts if they were in aerobars. It may “cost” that much, it just seems a little high to me.