9:36 am - Sat, Mar 22, 2014
3 notes

Regarding Henao, I find myself agreeing with Sky

although it is yet more speculation

my impression of the study that Sky might be undertaking with Henao

is to 

take him through a cycle of low altitude and high altitude exposure

under a period of intense observation

to follow his blood values during a forced washout period 

to see if genetically

he may show an altered response to altitude exposure

as has been documented 

in Andean high altitude native populations

if this is the case

this is exactly what i would do to either verify 

anomalous blood values

10:38 pm - Thu, Mar 20, 2014
3 notes
Illustration of why the Critical Power Grand Tour Study 
overestimated W’ estimates 
and 
underestimated CP
above is the critical power model fit to data points
(from the 24 hr MTB champ data set from Andy Coggan)
in the 
2-20 minute range (as commonly done in lab studies linking CP to VO2)
and
10-50 minute range (as used in the GT study)
note that these fits use more points (and likely better quality points)
than the study
and 
still produced
wildly different estimates of W’
15 kj vs 35 kj 
and 
CP
308 watts vs 281 watts
it would be awesome if the CP model 
was valid in the 10-50 minute range 
it would be awesome
if it was not dependent upon the range looked at 
but
it is not
and sometimes smart people get it wrong
(myself not excluded)

Illustration of why the Critical Power Grand Tour Study 

overestimated W’ estimates 

and 

underestimated CP

above is the critical power model fit to data points

(from the 24 hr MTB champ data set from Andy Coggan)

in the 

2-20 minute range (as commonly done in lab studies linking CP to VO2)

and

10-50 minute range (as used in the GT study)

note that these fits use more points (and likely better quality points)

than the study

and 

still produced

wildly different estimates of W’

15 kj vs 35 kj 

and 

CP

308 watts vs 281 watts

it would be awesome if the CP model 

was valid in the 10-50 minute range 

it would be awesome

if it was not dependent upon the range looked at 

but

it is not

and sometimes smart people get it wrong

(myself not excluded)

9:48 pm
3 notes
Contador is BACK !!! (?)
Fresh off his Tirreno-Adriattico
and proclamations of an imminent TDF showdown 
beyond our wildest dope-scarred dreams
its time for a bit of paint by number race analysis reality check 
(numbers courtesy of Vetooo @ammattipyoraily)
and 
the answer is 
sort uv
compared to a fop fuel years 2006 Giro Ivan Basso
Contador would have been gapped about half way up the climb
giving up in total
42 seconds
over the 5.24 km 8% ish grade climb
in watts normalized to a froome size 67 kg .35 CdA rider
Contador was in the 5.8 nW/kg +/- 2% range
versus
Basso in the 6.1 nW/kg range
ie
a top a podium 
but well off the pre-ban FingerBang glory days.

Contador is BACK !!! (?)

Fresh off his Tirreno-Adriattico

and proclamations of an imminent TDF showdown 

beyond our wildest dope-scarred dreams

its time for a bit of paint by number race analysis reality check 

(numbers courtesy of Vetooo @ammattipyoraily)

and 

the answer is 

sort uv

compared to a fop fuel years 2006 Giro Ivan Basso

Contador would have been gapped about half way up the climb

giving up in total

42 seconds

over the 5.24 km 8% ish grade climb

in watts normalized to a froome size 67 kg .35 CdA rider

Contador was in the 5.8 nW/kg +/- 2% range

versus

Basso in the 6.1 nW/kg range

ie

a top a podium 

but well off the pre-ban FingerBang glory days.

11:11 pm - Wed, Mar 19, 2014
Q: really wanted to know, with the horner leg question, was about bike fit: do you have any idea why his left leg is toed so much, why it seems he has to have it toed in so much? since it seems like that's a likely reason why he keeps getting injuries in that leg.
Anonymous

no sorry without examining the guy I don’t know if its a structural, neuro-muscular, or a bike fit issue issue. if the plane of the movement of the joints is not reasonably aligned with with the plane of the cranks then it does make sense that the stress has to go somewhere raising the likely-hood of over use injuries. 

10:53 pm
Q: what are the negative affects of clembuterol? Thx
Anonymous

this sounds more like a steroid forumn question.

10:52 pm
Q: Dr Veloclinic, The worst part of this whole thing is even if Thom Wiesel and Johnson got the lifetime bans they so well deserve from USADA, (and they are not) USAC is run by a board of directors that the independent USACDF (run by Wiesel) has three seats on the Board of Directors. USACDF has no association with USADA, and does not fall under the USOC's authority (like USAC ) Wiesel and Johnson could run USAC from prison and no one can stop them. No one. Not kidding.
Anonymous

yes (i agree with the sentiment)

also see

http://www.stanford.edu/~learnest/cyclops/

10:51 pm
Q: Hey Doc. what do you think about new drug test: acs org/ content/ acs/ en/ pressroom/ newsreleases/ 2014/ march/ new-method-is-a-thousand-times-more-sensitive-to-performance-enhancing-drugs. html
Anonymous

performance enhancing drugs is a bit broad as far what might actually be detectable with this technique.

10:49 pm
Q: What do you think the deal is with Horner's left leg, the same leg that's extremely toed in? are those kind of biomechanics within your expertise? Last year he had ITB, this year they claim he has tendinitis in his achilles tendon. You think it has to do with breaking his left leg, twice (according to PelotonMagazine artice, "not lemond. not hampsten. the one and only chris horner")?
Anonymous

he’s an old dude 

and

he’s fragile

10:47 pm

Their is a new clean cycling project getting off the ground in Colombia. 

The basic premise is that a small group of motivated individuals believe that they can provide a route for teams to extricate themselves from a playing field leveled by doping.

Unlike some internal testing programs there is an added layer of independence to the testing as well as the response to adverse results.

Unlike establishment anti-doping systems, participation is voluntary with an understanding that the common credibility of the teams signing on will take priority over the sometimes unreasonable burden of “proof” defaulted to by ADAs. 

Unlike the pro-tour, their is no (over) optimism about what is really going on. 

It should be interesting.

6:43 pm
1 note

When contacted by VeloNews, Zabriskie wrote in an e-mail: “What do you think he’s going to say? I told him twice before and he ignored it – you think he’s going to admit it now?”

Read more at http://velonews.competitor.com/2014/03/news/usac-chief-denies-knowledge-postal-doping_320736#xLMReHp2UA53OCcy.99

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