Pacquiao comments

Science supports what Pac says. :hi:

http://www.eastsideboxing.com/forum/showthread.php?t=294487

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This is for those who say giving blood for tests does not affect athletic performance.

Blood tests for drug use involve collecting about 10-20 cc of blood (1-2 vials). 4 of these drug tests will equal 50-100 cc, or about 10% - 20% of a pint of blood given in donations (450cc).


1. How do periodic reductions in hemoglobin affect an athlete's ability to train?

From:

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Blood is a complicated tissue with many different roles. When you donate blood, you give up a pint of fluid containing mostly water along with various proteins and cells in solution. During high-intensity endurance activities however, it is hemoglobin, found within our red blood cells, that is most important.

Hemoglobin delivers oxygen to our tissues, and when we exercise our muscles require increased amounts of oxygen. If we lack sufficient hemoglobin, anaerobic, or without oxygen, metabolism will ensue (producing lactic acid) at even seemingly moderate levels of intensity.

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, (which is why you may not donate more often than every two months). What then are the lasting effects of this red blood cell loss?

Assuming that your cardiac output (the amount of blood pumped by the heart) remains constant, a drop in hemoglobin concentration associated with donating blood will reduce your oxygen delivery to working muscles by 10 percent. Still, when you are at rest, or even during moderate levels of exercise, oxygen delivery, even at this decreased capacity, far outpaces demand.

However, once you reach a heart rate that is around 5 to 10 percent below your usual anaerobic threshold, your body's demand for oxygen will outpace its supply. For example, if your metabolism typically becomes anaerobic at a heart rate of 170, then after donating blood you will become anaerobic at a heart rate of between 157 and 164 beats per minute. This value will fluctuate because your hemoglobin level will be rising slowly each day, thus the most significant effect will be felt in the first few days after donating.

2. Donating Blood - What Active People Need to Know

He notes that many variables make it difficult to predict how much or how long donating a pint of blood will affect athletic performance. However, he notes that recovery after blood donation is fairly fast. Eichner writes: "In my anecdotal experience,

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."


10% of 4 weeks is roughly 3 days, the same amount of time Pac complains about not feeling well in training after giving blood for testing hepatitis. :deal

 

your just doing this because mayweather gets hated on these days for making stupid demands and avoid the biggest fight in boxing. If you really care that much about who is to blame why dont you make a poll on it?

 

Because there are more people who hate on mayweather than like him! Therefore a poll would be biased against mayweather from the start! Regardless what a person really thinks about the situation they would vote floyd wrong and write a hateful comment against him because of their dislike and emotional hatred of the man

 

Pac not alone in his concern. :hi:

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Top Sprinter 'Weakened' by Excessive Olympic Blood Tests


Hardbodies News

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Powell is worried he will be 'weak' for the 100 meter final

Has the witch hunt gone too far? A former world record holder speaks out about excessive drug tests at the Beijing Olympics.

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Jamaica sprinter Asafa Powell believes drug testing has taken so much of his blood at the Beijing Olympics that it could hamper his 100 meter final run.

Former world record-holder Powell, who could be checked again on Wednesday, said the tests on himself and his team-mates at the Games had gone too far.

"They've tested me four times here; they're taking so much blood I'll be weak for the final," Powell said.

Beijing aims to be dope-free with extra checks being used to avoid drug users.

"I'm almost sure I might be tested again. I don't know about anyone else but they're really doing it in my case and with my team-mates Michael Frater and Usain Bolt," he added.

"They're saying they're doing about 4000 tests. It's just very difficult to catch everyone but I hope they can do it and make this Olympics clean."
Athletes in China will be the most tested in history because of the stringent measures, with authorities paying particular attention to the sprinters after recent doping revelations.

Athens' winner ****** Gatlin of the US is currently serving a four-year ban for doping offences.

Compatriot Tim Montgomery, a winner in the 4x100m relay in Sydney, was a client of BALCO, the San Francisco laboratory which produced the designer steroid THG.

Told of those comments, IAAF spokesman Nick Davies said in a telephone interview that Powell agreed to take part in the organization's program that began this year.

"He knows about it, so it's a bit strange he would complain," Davies said. "He's possibly exaggerating about the four tests. But certainly he is part of the program. He knows he will be tested more often."

Powell's agent, Paul Doyle, said he was unaware of Powell's participation in the IAAF program.

Davies said it's possible Powell has been tested in China by the International Olympic Committee, the World Anti-Doping Agency and the IAAF.

"The point is, it's a good thing if he's been tested a lot," Davies said. "He's a favorite for the 100 meters, so why not?"

Powell joins current world record-holder Usain Bolt and U.S. record-holder Tyson Gay in a highly anticipated 100 in Beijing. Powell expects to be tested again before the event's preliminary heats Friday, the first day of track competition at these Olympics. The 100 final is Saturday.
Gay, who arrived in China at the end of last week, said Monday he had been "blood-tested once and urine-tested once since I've been here."
Gay, swimmer Michael Phelps and sprinter Allyson Felix are among a dozen American athletes whose body chemistry is profiled using a series of blood and urine tests under a voluntary U.S. Anti-Doping Agency program that Davies characterized as similar to that run by the IAAF.

Davies said the IAAF program, like USADA's, uses so-called longitudinal tests in hopes of curtailing performance-enhancing drugs in the long term. Instead of testing against fixed, arbitrary numbers, the tests establish each athlete's body chemistry, then compare new tests to that baseline.
"It's what I'm doing to show my love for my sport," Gay said. "It comes with the territory. Past champions have tested positive. But an Olympic champion needs to carry himself clean, to be clean and to be able to prove he's clean."

The IOC has made a point of going after dopers at the Beijing Games, increasing its number of tests to about 4,500 — up from 3,600 for the Athens Games four years ago. It also is doing "target testing" of suspected dopers

 

yeah its true, there are many fanboys who would do that.
But lets be honest here I can get why pac gets blamed the first time but after that mayweather does not seem interested to make the fight.
So we can ask, would there have been more crazy demands that he never asked before? or why was it even necesary to ask that?
In the end its another black eye to boxing because it willnot get made, us fans suffer and floyd will shoulder the majority of the blame. Atleast thats the way it looks now.

 

A drug test is 2 samples, so it's 2 x 10cc x 4 tests = 80 cc possibly

80cc is roughly 20% of 450cc.

20% of 4 weeks (28 days) is roughly 6 days.

6 days of feeling weak in 8 weeks of training? Sound very compromising to me.

 

Yeah, sorry guys, a tiny vial of blood will not deplete your energy or ability to train.