Elite BMX

And now for something totally different:  Jens Westergren is researching BMX power requirements and has some data to share as well.  Below is a chart of his data and some of his comments/questions:

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The new UCI Supercross format (Olympic format) consists of two time
trial runs as qualification then a number of finals, in all around 5-10
heats of 30-45 s duration. Because of the jumps and turns it´s rater
different from for example 400 running.

I'm currently working on a "performance criteria analysis" of BMX racing
for the Swedish Olympic Committee. My only problem is that the amount of
published research done on the subject is to put it nicely,
non-existent!
A pubMed search gives maybe seven relevant hits, of which all of the are
about injuries in BMX racing (must be a very dangerous sport...)

This is what I´ve found:

Politi, S.; Heazlewood, I. Exercise physiological, biomechanical and
kinanthropometric
predictors of bicycle motor cross in young adults : a preliminary
study.Mathematics and computers in sports : 3rd conference held at
Bond University, Queensland, Australia, 30th September to 2nd October,
1996, Queensland, Bond University, 1996, p. 123-153.

Attached is the power output graph of a 74 kg top level Swedish rider,
measured by a SRM pro system fitted to his race bike. To avoid any
interference from other riders (and crashes...) it was done as a time trial.
This is especially relevant now since the UCI Supercross
use time trial runs to qualify. I would be very grateful if you could post
this on the forum!

 

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If you have any insight for Jens, contact him at jenswestergren@hotmail.com.