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Can Claude Replicate Our FPCA Study?
I was curious to see 1. How good was Claude, 2. How good did we write our methods sections. I gave Claude just the PDF of Puchowicz and Skiba FPCA study the paper...
View ArticleIntroducing LIGHT BOX RESEARCH
The dark secret of AI is that the models are black boxes. We can see what goes in (to an extent) and what comes out. In between, all accessibility to human insight, interpretation, and accountability...
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Peronnet and Thibault; the source model under the hood of WKO4 WKO5
I’ve raised the issue before with Andy Coggan. He has not given proper attribution to Peronnet and Thibault as the source model for his own model. The Peronnet and Tibault model is a reasonable model...
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Part 3: Reference ranges for the FPCA model Golden Cheetah open data
This is the third post on applying functional principal component analysis to the open GC project power duration data. Part 2 explains the approach and the resulting model. The purpose of this post is...
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Three ICU transfers and one death reported in hydroxycholoquine treatment group
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7102549/ An under discussed part of the Guatret 2020 study is the somewhat buried data that the hydroxycholoroquine treatment group had 6 participants...
View ArticleVizualizing U.S. COVID-19 Data: Are we flattening the curve?
A critical question when looking at the daily rate of new US COVID-19 cases is whether we are flattening the curve. I haven’t found an adequate visualization that accounts for a major confounder: Is...
View ArticleDevelopment and field validation of an omni-domain power-duration model
Michael J. Puchowicz, Jonathan Baker & David C. Clarke (2020) Development and field validation of an omni-domain power-duration model, Journal of Sports Sciences, DOI:...
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Athlete Biological Passport Standard Deviation ?
When I drill down in to data it’s no surprise when I catch small errors and discrepancies pop. But the thing that jumped out when drilling down into the Cobo ABP data...
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Cobo Athlete Biological Passport Visualization and Discussion
Its blood data, so you know I have to take a look. The UCI broke its long biopassport sanction drought by going after a retired rider on a minor team best know for blowing things up at the Vuelta. The...
View ArticleEPO (sea) Levels the Playing Field; Who Would’ve Thought
https://journals.lww.com/acsm-msse/Abstract/2019/02000/Effects_of_EPO_on_Blood_Parameters_and_Running.10.aspx First off, I’ve only read the abstract and from that I’m just thinking what the hell was...
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What is an interval ?
Its like porn, difficult to define but you know it when you see it… Lets take a vote: Example 1 or Example 2 Flock, do your thing and make answers. The post What is an interval ? appeared first on...
View ArticleExploring interval detection with the ruptures library
This post follows from the Accessing the Golden Cheetah OpenData post. This gist starts the process of developing an interval detection algorithm utilizing statistical change point detection. For...
View ArticleAccessing the Golden Cheetah OpenData
This post is a first for what I hope will be a productive new direction for sharing my tinkering and research. I have over the past month or so dove back into Python and am learning how to use Jupyter...
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Do Cyclists Cluster into Phenotypes ?
This post is a quick one asking the question whether the GC Open Data Project cyclists cluster into distinct phenotypes? I used the 2nd and 3rd principal component scores from the 3 component model...
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Part 3: Reference ranges for the FPCA model Golden Cheetah open data
This is the third post on applying functional principal component analysis to the open GC project power duration data. Part 2 explains the approach and the resulting model. The purpose of this post is...
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The small volume blood transfusion study
This study Time Trial Performance Is Sensitive to Low-Volume Autologous Blood Transfusion. by Beldjer et al has drawn some attention by a shocking finding of “ABT of only ~135 ml of RBCs is sufficient...
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Part 2: Functional Principal Component Analysis of the Golden Cheetah Power...
After the first post on FPCA of the Golden Cheetah Open Data Dan Connelly (@djconnel) pointed out that since the FPCA uses basis functions the fit would improve after taking the log of power. Going...
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Functional PCA of the Golden Cheetah Power Duration Data
With 2,445 athlete seasons (inclusion criteria: at least 100 power files per season and at least PD data out past 2 hours), it makes sense to let the data speak without a predetermined narrative. One...
View Article“The Critical Power Model as a Potential Tool for Anti-doping”
Herein, we review the basis by which performance models could be used for doping detection, followed by critically reviewing the potential of the critical power (CP) model as a prototypical performance...
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Tour de France Performance Trends (2008-2015,2017)
Tweet With 10 years (almost as 2016 is missing) of Tour de France finishing climbs on the spread sheets, it seemed time to have a look back and see if there was an interesting trend. First to...
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