What are the explanations for fluctuating T/E ratios in drug tests of top fighters?

[Jin Akutsu]

Medical stuff:

In connection with a national anti-doping control program, including analysis of 8946 urine samples, 28 athletes were found to have delivered samples free from xenobiotic anabolic steroids but with an increased testosterone/epitestosterone (T/E)_ratio (>6). Unannounced testing of the above athletes produced 2

 

[SocraticMethod]

Are the "non-users of testosterone" referred to in the pull quote at the top of your post professional athletes?

 

[Jin Akutsu]

Are the "non-users of testosterone" referred to in the pull quote at the top of your post professional athletes?

Unsure if professional, this study focused on Swedish athletes.

 

[Bulletproof Acc]

Conor Mcgregor

 

[SocraticMethod]

Unsure if professional, this study focused on Swedish athletes.

OK. I couldn't tell if that "reported" number was from the study itself, or a number that they had going into the study as a control.

 

[MYSTXRIVL]

intense training camps along with weight cutting will def lower your test levels

 

[neandertal]

Surprise, surprise, Vitor is on the top end level allowed at the start of the testing..

 

[The ScorpioN]

That depends. If you're a fan of the fighter in question, then it's either weight cutting/training or medical condition.

If you dislike the fighter in question, then obviously they're trying to mask some peds.

 

[Random Passerby]

That depends. If you're a fan of the fighter in question, then it's either weight cutting/training or medical condition.

If you dislike the fighter in question, then obviously they're trying to mask some peds.

GOAT answer.

 

[Jin Akutsu]

intense training camps along with weight cutting will def lower your test levels

Any stats or sources for that in correlation these large swings?

 

[Mau]

Waiting a doctor share his wisdom itt. Everything else is irrelevant.

Lol @ this brat okamoto sharing info he doesn't even understand.

 

[ravifreitas]

Waiting a doctor share his wisdom itt. Everything else is irrelevant.

Lol @ this brat okamoto sharing info he doesn't even understand.

Yeah, how dare a journalist from ESPN share important information about high level athletes.

 

[TFanatic]

PED's and masking agents, what else?

 

[Candy Routure]

I really hope Vitor didn't fucking cheat.. If he pisses hot again.. Fuck..

 

[finalboss]

http://espn.uol.com.br/noticia/511721_reporter-diz-que-belfort-tem-mais-testosterona-que-weidman-e-deixa-campeao-chocado

30? Hmmm... wonder what Vitor excuse when his TRT levels go over double from 500 to 1200. Pretty good for a guy who suffers from low TRT, especially since the upper limit is 1100. I wonder how he does it? That's right, Cheez its.

 

[Rittsy]

Doesn't pretty much everything make testosterone levels fluctuate? Sleep, sex, exercise, diet, hydration, physical condition, stress etc.

I think most experts are going to tell you that they fluctuate naturally for several reasons. That's why they have ways of testing for synthetic testosterone and masking agents.

No expert is going to say 'PEDs' unless there's a positive test to back it up.

 

[Jin Akutsu]

Doesn't pretty much everything make testosterone levels fluctuate? Sleep, sex, exercise, diet, hydration, physical condition, stress etc.

I think most experts are going to tell you that they fluctuate naturally for several reasons. That's why they have ways of testing for synthetic testosterone and masking agents.

I would agree, which is why I included the medical tidbit in the OP. These aren't small fluctuations.

 

[Rittsy]

I would agree, which is why I included the medical tidbit in the OP. These aren't small fluctuations.

But even large changes can be caused by these things.

What any legitimate expert would say is "These things can occur naturally, use a CIR test to be sure." If they pass the CIR the assumption is that they're natural fluctuations. Without a long history to compare it to, like over a period of several months throughout the year, fluctuations like that are not enough to indicate PED use.

Maybe try contacting someone from one of these drug testing orgs. There might be other testing available?

 

[countswagula]

There's nothing strange about either Weidman's or Belfort's T/E ratios. Normal is anywhere from 1 to 4, ant they both fall within that range.

 

[Jin Akutsu]

But even large changes can be caused by these things.

What any legitimate expert would say is "These things can occur naturally, use a CIR test to be sure." If they pass the CIR the assumption is that they're natural fluctuations. Without a long history to compare it to, like over a period of several months throughout the year, fluctuations like that are not enough to indicate PED use.

Source and amount?

Also, I agree.

As a side note, urine tests are also weak in general. Whilst they can't indicate anything concrete, they can raise flags for concern or further testing such as those Carbon isotope tests you're referring to.

There's nothing strange about either Weidman's or Belfort's T/E ratios. Normal is anywhere from 1 to 4, ant they both fall within that range.

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