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Originally posted by Cheek busting
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Hair test will show PED use up to 6 months. Meat contamination is extremely low trace and leaves your body in 1 week. PED use of clenbuterol much higher and stays in your hair folicles for months.Last edited by bigdunny1; 04-27-2018, 03:16 AM. -
No - hair test is up to 90 days. It says body hair may go back a lot further.Originally posted by bigdunny1 View PostComment
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From the ESPN articleOriginally posted by Cheek busting View Post
According to Dopeology.org, which extensively covers doping in professional cycling, "Clenbuterol, like many other substances, accumulates in very small amounts in hair follicles. If an athlete has taken the substance over a period of time in the past, his/her hair test might return a positive for a period of six months or longer. Conversely, if the clenbuterol resulted from a single incident, in which the subject had eaten meat for example, a hair test would almost certainly be negative."
From drug expert Victor conte
Canelo testing negative 4 clenbuterol in hair is very important. Seems WADA will soon establish an allowable limit for trace amounts of clenbuterol in urine & hair. No doubt. Canelo having no clenbuterol detected in a hair sample should mitigate his consequences. Game changer.
— Victor Conte (@VictorConte) April 27, 2018
The hair test results for clenbuterol in the Canelo case are MORE revealing than the urine results in regards 2 possible intent to cheat. Hair results represent a longer period of time than urine results. If they had found more than 20 pg/mg of clenbuterol in his hair. BINGO!
— Victor Conte (@VictorConte) April 27, 2018Comment
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He didnt change his tune. He was always supporting fellow mex Clenelo. Doesn’t change the fact that Clenelo was cheating.Comment
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The hair sample is cut as close to the scalp as possible and the most recent 3.9cm (or 1.5 inches) are tested. It is possible to go back even further than 90 days since the time period is limited only by the length of the hair sample, but is standardized to a 90 day history.Originally posted by bigdunny1 View Post
Canelo doesn't have very long hair.
LOL all this does is show he hasn't used anything since he got caught.
hahahahaComment
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Dude you are stating things that experts directly contradict. He failed his test in Feb 20 he took the hair test on March 29. Either way it was less then 90 days. But experts all say the stuff stays in your hair 6 months.Originally posted by Cheek busting View Post
The Nevada commission collected hair samples from Alvarez on March 29 and they were tested at the Sports Medicine Research & Testing Laboratory, a WADA-accredited lab in Salt Lake City, Utah, Bob Bennett, the commission executive director, told ESPN.Comment
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No - experts say it is about 90 days, but the length of the hair depends on how far it can go back.Originally posted by bigdunny1 View Post
Also - hair color has a huge effect. IDK why Conte says "no science" backs that up.
BOOM, THIS SETTLES IT!
The hair test
There has been a push in some quarters to use the “hair test” in order to convict or clear Canelo. To hear it told, this hair test is the answer to every question. In reality, hair testing for clenbuterol isn’t used for a reason; it’s incredibly unreliable.
The amount of clenbuterol that shows up in hair varies massively depending on factors like hair color. One study gave a group of people the same amount of clenbuterol. One participant, a 27-year-old female, showed 23 ng/g of clenbuterol in her hair afterwards. Another participant, also a 27-year-old female, showed 161 ng/g of clenbuterol in her hair. They both took the exact same amount, but one had seven times as much in her sample. The suggested reason for this discrepancy? The women had different hair color. This hair color discrepancy was supported by the other data in the study.
That might sound ridiculous, but other studies have found the same thing.
Another study, with more participants, found that even among subjects with similar hair color, the variation is still large. Despite every subject having hair listed as “brown” or “dark brown”, this study also found significant variation:
The lowest detected amount of clenbuterol in the first segment of hair was 0.43 pg/ng, the largest amount was 4.76 pg/ng. Both of these subjects had hair classed as “brown,” and both took the same amount of clenbuterol in the same way. That’s a difference of an entire order of magnitude. A similar issue was found in the second segments, which ranged from a detected amount of 0.00 pg/ng to 0.86 pg/ng.
Tests that have results varying by so much even under a controlled conditions are not reliable tests. The idea that they would somehow give us the information we need to determine if Canelo accidentally or deliberately ingested clenbuterol is ridiculous.Comment
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Victor Conte is an expert and knows more about this shyt then anyoneOriginally posted by Cheek busting View Post
Hair is a scientifically valid sample type 4 clenbuterol testing in the Canelo case. Yes there are variations w/ hair color. However they measure at picogram concentrations. A picogram is equal to one trillionth of a gram. This is ultra trace analysis by a WADA accredited lab.
— Victor Conte (@VictorConte) April 27, 2018
Attacking the scientific credibility of hair testing for clenbuterol because of color variations is simply an uninformed argument. Many drug tests have all kinds of variations. Urine samples can be diluted or concentrated. Asians have much lower T/E ratios compared to blacks etc.
— Victor Conte (@VictorConte) April 27, 2018
CANELO: The WADA accedited lab knows about color variations & that head & pubic hair have different growth rates. It is significant that they did not detect clenbuterol in the hair of Canelo. This is IMPORTANT EVIDENCE in favor of Canelo's defense.
— Victor Conte (@VictorConte) April 27, 2018Comment
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Originally posted by bigdunny1 View Post
Why does he say it isn't scientifically "sound" when CLEARLY there is science to support it?
THIS ENDS IT. STOP IT.
The hair test
There has been a push in some quarters to use the “hair test” in order to convict or clear Canelo. To hear it told, this hair test is the answer to every question. In reality, hair testing for clenbuterol isn’t used for a reason; it’s incredibly unreliable.
The amount of clenbuterol that shows up in hair varies massively depending on factors like hair color. One study gave a group of people the same amount of clenbuterol. One participant, a 27-year-old female, showed 23 ng/g of clenbuterol in her hair afterwards. Another participant, also a 27-year-old female, showed 161 ng/g of clenbuterol in her hair. They both took the exact same amount, but one had seven times as much in her sample. The suggested reason for this discrepancy? The women had different hair color. This hair color discrepancy was supported by the other data in the study.
That might sound ridiculous, but other studies have found the same thing.
Another study, with more participants, found that even among subjects with similar hair color, the variation is still large. Despite every subject having hair listed as “brown” or “dark brown”, this study also found significant variation:
The lowest detected amount of clenbuterol in the first segment of hair was 0.43 pg/ng, the largest amount was 4.76 pg/ng. Both of these subjects had hair classed as “brown,” and both took the same amount of clenbuterol in the same way. That’s a difference of an entire order of magnitude. A similar issue was found in the second segments, which ranged from a detected amount of 0.00 pg/ng to 0.86 pg/ng.
Tests that have results varying by so much even under a controlled conditions are not reliable tests. The idea that they would somehow give us the information we need to determine if Canelo accidentally or deliberately ingested clenbuterol is ridiculous.
THIS PWN WAS BROUGHT TO YOU BY CHEEK BUSTING ON BEHALF OF THE FINE YOUNG CAPITALISTSComment
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you would think he would submit his hair back in february, not end of AprilComment
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