Growth hormone doesn't boost athletic abilities
HGH may actually impair performance, review of studies finds
The Associated Press
updated 2:00 p.m. PT, Mon., March. 17, 2008
NEW YORK - Athletes who take human growth hormone may not be getting the boost they expected.
While growth hormone adds some muscle, it doesn’t appear to improve strength or exercise capacity, according to a review of studies that tested the hormone in mostly athletic young men.
“It doesn’t look like it helps and there’s a hint of evidence it may worsen athletic performance,” said Dr. Hau Liu, of Santa Clara Valley Medical Center in San Jose, Calif., who was lead author of the review.
Growth hormone, or HGH, is among the performance enhancers baseball stars Roger Clemens and Andy Pettitte were accused of taking in the blockbuster Mitchell Report. Clemens denies using the hormone, while Pettitte admits using it.
But the new research has some limitations and sheds no light on long-term use of HGH. The scientists note their analysis included few studies that measured performance. The tests also probably don’t reflect the dose and frequency practiced by athletes illegally using the hormone. Experiments like that aren’t likely to be conducted.
“It’s dangerous, unethical and it’s never going to be done,” said Dr. Gary I. Wadler, a member of the World Anti-Doping Agency and a spokesman for the American College of Sports Medicine.
Consequently, those in the field have to depend on such reviews or “what we hear on the ground,” he added.
Human growth hormone is made by the pituitary gland and promotes growth. A synthetic version has been available since the 1980s and its use is restricted for certain conditions in children and adults, including short stature, growth hormone deficiency and wasting from AIDS.
Although banned for other uses, growth hormone has been used by a variety of athletes and was cited along with steroids as one of the performance-enhancing drugs abused by baseball players in the report in December by former Senate majority leader George Mitchell. Several athletes, including Pettitte, have said they used HGH while recovering from an injury, an issue not covered in the review.
“There are a lot of claims that it’s this wonder drug,” said Liu.
Wadler said one of the appeals of growth hormone for athletes is that it can’t be detected in a urine test. A blood test will be available soon, and another is in development, he said.
“They think they are getting a free ride — they aren’t getting a drug test,” he said. “They believe they are stronger and bigger.”
Liu and his colleagues at Stanford University sought to find out if growth hormone really could improve performance. They looked for the best published tests, those comparing participants who got the hormone to those who didn’t get the treatment.
They analyzed 27 studies involving 440 participants. The results were released Monday by the Annals of Internal Medicine.
Researchers found that those who got the hormone put on about 5 pounds more of muscle, and lost about 2 pounds more of fat, although the fat loss wasn’t statistically different. The researchers said some of the extra body mass could just be fluid buildup.
There was no difference found in strength or exercise stamina between the two groups, but there were only two strength studies and eight that measured exercise. Those who got the hormone had more side effects including swelling and fatigue.
The review couldn’t consider long-term effects, since the longest study was three months, and most were much shorter.
The researchers also said the doses used in the research may be lower than those used by athletes, who may be combining growth hormone with other performance-enhancing drugs.
Dr. Alan Rogol of the University of Virginia and the Indiana University School of Medicine, said the work was a good review but had to rely on inadequate research.
“There are just tons of things we don’t know,” said Rogol.
The California researchers had support from Stanford, government agencies and Genentech Inc., which makes growth hormone; none of the groups had a role in the study. Two researchers also have been consultants or received grants from Genentech and other drugmakers.
© 2008 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
URL: http://www.msnbc.msn.com/id/23677433/
Growth hormone doesn't boost athletic abilities
Started By redspy, Mar 19 2008 07:31 AM
11 replies to this topic
#1
Posted 19 March 2008 - 07:31 AM
#2
Posted 19 March 2008 - 09:11 AM
hmmmm it seems to work pretty well for me.
#3
Posted 19 March 2008 - 09:12 AM
hau lau needs to eat some kung pau chicken, get laid and STFU
#4
Posted 20 March 2008 - 02:55 AM
This is great news - now they can legalize it!
KB
KB
#6
Posted 21 March 2008 - 02:43 PM
When I started studying AAS's when I was 17...every book and Medical Journals stated that "Anabolic/Androgenic Steroids DO NOT enhance athletic ability. That was 20 yrs ago and now theyre trying to pull the same bullshit withn HGH.
Jeeze....the more things change, the more they stay the same!
gator
Jeeze....the more things change, the more they stay the same!
gator
#7
Posted 30 April 2008 - 05:45 PM
Thats like when they said steroids cause cancer.
No idea what they are talking about as usual.
Big G
No idea what they are talking about as usual.
Big G
#8
Posted 01 May 2008 - 02:37 AM
This is the kind of BS that makes the medical community look like such fools and lose tons of credibility. I just dont understand why they cant tell the damn truth for once. The idiots think that teenagers are gonna read or believe that, then they are way mistaken. The medical community has a responsibility that it largely ignores.
#9
Posted 01 May 2008 - 02:42 AM
When I started studying AAS's when I was 17...every book and Medical Journals stated that "Anabolic/Androgenic Steroids DO NOT enhance athletic ability. That was 20 yrs ago and now theyre trying to pull the same bullshit withn HGH.
Jeeze....the more things change, the more they stay the same!
gator
You are exactly right, in some medical books it still states that Anabolic Steroids do not enhance muscle...Kind of crazy and mind boggling but history seems to repeat itself.
#10
Posted 01 May 2008 - 02:44 AM
QUOTE
Growth hormone doesn't boost athletic abilities
GOOD, NOW THAT THATS CLEAR, WHY ARE ALL THE FAGGOTS IN CONGRESS WORRIED ABOUT IT IN BASEBALL?
#11
Posted 01 May 2008 - 03:27 AM
QUOTE
Growth hormone doesn't boost athletic abilities
GOOD, NOW THAT THATS CLEAR, WHY ARE ALL THE FAGGOTS IN CONGRESS WORRIED ABOUT IT IN BASEBALL?
Pretty evident when ya look at the sentence.
Congress need to worry about 4 $ a gallon gas more than who's doing the gas!!
#12
Posted 01 May 2008 - 08:19 AM
QUOTE
Growth hormone doesn't boost athletic abilities
GOOD, NOW THAT THATS CLEAR, WHY ARE ALL THE FAGGOTS IN CONGRESS WORRIED ABOUT IT IN BASEBALL?
What was hysterical about this matter was the end result! Aside from the few that did time, NOTHING has changed. The league remains in control of testing, the investigations ended, and Mitchell had his 5 minutes of fame.
...all at the expense of your tax dollars, ladies and gentlemen.
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