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 that is an extension of Ward-Smith which a modification of LLoyd which is an extension of Hill. Hill: P(t) = …
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 “lost to follow up” (a term referring to participants dropped or dropping out of the study) while the control group had no participants lost to follow up. The reasons for loss to …
Development 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: 10.1080/02640414.2020.1735609 Purpose: To validate and compare a novel model based on the critical power (CP) concept that describes the entire domain of maximal mean power (MMP) data from cyclists. Methods: An omni-domain power-duration (OmPD) model was …
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 http://veloclinic.com/cobo-athlete-biological-passport-visualization-and-discussion/ was that the Z-score model was apparently producing far wider cut offs than the actual ABP. Jeroen Swart pointed this out to …
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 upshot is they handed the red (formerly gold) jersey to Froome who rode said Vuelta, …
EPO (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 the point? But I could not not write that title so here you go. Allez.
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.
Exploring 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 python ‘ruptures’ is a library that offer several options for change point detection.
Accessing 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 notebooks and Github. For those not in the familiar (such as me up until very …
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 (see Part 2 and Part 3). The short answer is that it doesn’t look that way, to me anyway. I don’t see any …