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Posture

I got fitted last year and worked on my posture on the bike quite hard. After spending some time off the bike and coming back I have developed some bad habits. No.1 is a tendency to sit too far forward. On a ride yesterday, for no reason at all, I sat back in the saddle and wow!! what a difference - more power less hurt.

I guess it's a bit like golf - you should continually check posture and alignment to make sure you're setup to succeed not fail. Ho hum.

The weather is forecasted sunny tomorrow and I've decided to have a go at the ToSH, the full thing. See if I'm near the 04:20:00 pb or the 06:30:00 pw(orst). I'll be posting the results here - my guess is I'll be around the 05:30:00 mark. 110km 2000m of climbing, max gradient 21%.

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I tried to optimise from a domain and  programming perspective, where Dave Waterworth, a mathematician found a much more elegant and fast reformulation.

This means W'bal can EASILY be computed as you ride.

To explain the math here are his words;

I posted a comment on you Blog post on optimising the Wbal model. I've done some more thinking and I defn think it can be done without visiting the previous samples as the Skiba formula can be decomposed further, i.e. From your blog I believe the integral part of the equation is:





Basically this takes a weighted sum of preceding W'exp samples where the weight decays at a rate determined by tau, older samples are weighted less than newer ones. We can approximate as a sum provided tau is large compared to Ts (the sample rate):





Basic properties of exponential functions allow the for…