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Duathlon Debate conclusion

caeagle16's picture
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started by caeagle16 on June 17, 2008

Some of you saw my question last week about using clips vs. non-clip pedals on a flat duathlon course (one short steep hill, fairly long, gradual downhill immediately following that) to reduce transition times. The duathlon was a 2-10-2... Well, here is the facts first, my conclusion at the bottom:

My bike split, with clip in pedals, (unofficially, as the mat didn't pick up my chip) was 27:45 over 10 miles, which included T2 and a minor bike mishap (cost approx a minute) due to race volunteers not giving clear instructions on where to turn. T1 was 45 seconds. Finished first in my age group (20-24) with an overall time of 53:36

My father's bike split (no clip in pedals) was a 27:43 (he is 52 yrs old) with both T1 and T2 being 28 seconds. Combined, he had second lowest transition times in the field, and fastest T1. He finished first in his age group. (50-54), with an overall time of 57:20.

Thus, my conclusion is... the experiment was inconclusive. I figure that my bike split would have been about 45 seconds faster had it not been for the minor wreck, but he was obviously able to gain about 45 seconds on me through transitions. The Pops is of the belief that you should not use bike shoes

Thoughts from the rest of trifuel?

charlie6460's picture
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charlie6460 posted 9 weeks ago.

Congrats on winning your age group. I was at this duathlon. There were many fast people there, or I am just slow.

Anton's picture
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Anton posted 9 weeks ago.

Great job to you both!...MUST be the genes.
In a du that short..I'm with Pops. But then again he and I are in the same AG.
Longer bike, like 25 miles, I'd for sure be in the bike shoes.

"What would life be if we had no courage to attempt anything?" - Vincent Van Gogh
My Blog: http://anton.trifuel.net

jsk85's picture
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jsk85 posted 9 weeks ago.

Very well done by you both...and of course as with most things, there is no obvious answer.

TriSooner's picture
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TriSooner posted 9 weeks ago.

caeagle16 wrote:
Thus, my conclusion is... the experiment was inconclusive.

Actually, if you both finished first in your age group, you proved the null hypothesis that there is no difference between platform and clipless peds.

jhudalla's picture
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jhudalla posted 9 weeks ago.

technically you can't prove or disprove the null hypothesis. you only accept or reject based on info from the alternative hypothesis:

H0: Clips > Regular shoes
H1: Clips =< Regular shoes

There is sufficient evidence which would lead us to accept the alternative hypothesis. Sorry, I just finished a stats class. Let me tell you... BOOORING

Weary is the path that does not challenge.

caeagle16's picture
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caeagle16 posted 9 weeks ago.

Fair enough, the null hypothesis it is! haha, thanks all for responses. Maybe this info will help some of you in the future!

jsk85's picture
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jsk85 posted 9 weeks ago.

In the end...talent and training beats shoe choices, that's my conclusion

ChunkyB's picture
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ChunkyB posted 9 weeks ago.

jsk85 wrote:
In the end...talent and training beats shoe choices, that's my conclusion

Well, talent and training also beats bike choice, so why don't you see more pros on mountain bikes.

I think the question is if the same person, with the same talent and training, would do better with clips or with clipless pedals. And, based on this "experiment", we can't accept or reject any hypothesis. If the same guy had done the same race twice with the exact same training and fitness, once with clips and once with clipless, then we would be able to conclude something.

As it is, the only thing we can conclude is that you got the times you did with the shoes you used. Who knows if either of you would have done worse or better with a different shoe choice.

"The melting point of wax means nothing to me": Thrice

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