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Danny
21-06-2005, 08:27 PM
DNA use for talent identification, an issue that may arise more in the next 5-10 years.

I'm all for it. As long as it is used in conjunction with other indicators, and not just used as the sole source for selection. The future is here.

Anyone else have a similar of different view?

Clubs consider genetic tests
By Ashley Porter
Realfooty
June 21, 2005

DNA testing shapes as the frontier in the endless search for an edge in AFL recruiting.
Photo: John Shakespeare

Two of the AFL's most powerful clubs are considering DNA testing young recruits to test their likely height, strength, speed and stamina.

The move has met immediate opposition from the AFL Players' Association, whose president, Brendon Gale, has called on the AFL to take a firm stand against the practice, citing United Nations privacy laws.

Port Adelaide and Essendon have considered using the radical testing - already adopted by National Rugby League club Manly, which has DNA tested its players for the past two years.

The tests cannot determine the potential ability of players, but does identify their likely natural physical attributes.

Port chief executive John James confirmed to The Age that the club was "thinking the issue through".

"Being an innovative club, which is one of the core identities of Port Adelaide, DNA testing was one of the possibilities that came before us," he said.

"We are continuously looking at new innovations, and this was one of them. As far as making the decision we are not at that point yet, but yes, we were considering the move."

Port Adelaide coach Mark Williams said he would like to DNA test potential draft picks, but questioned the cost - each test is about $750.


Essendon fitness coach John Quinn recently told The Age that if DNA testing was to further football, it must take place in the drafting process so clubs could be even more particular about whom they recruited.

The DNA testing requires a sample of skin cells scraped from the inner cheek, and the test examines a particular gene, ACTN3, which produces a structural protein found in muscle fibre.

Once the DNA tests have been completed, the club would have the moral obligation to properly dispose of the samples.

DNA - deoxyribonucleic acid - is the genetic material of nearly all living organisms and is located in the cell nucleus.

Mr Gale said he was "very uncomfortable" about such testing.

"A lot of players would not understand the consequences of genetic testing, and the information that it can provide," he said.

"My personal view is that football should be very concerned. At the end of the day, the clubs could not compel anyone to do the test. And there are ethics involved here.

"Putting aside the morals and ethics, there are legal complications in regard to how the DNA could be used. In sport, it is used for exclusionary purposes, and this gives rise to discrimination.

"You have to think of a whole raft of effects that it will have on the players, and the game.

"I can understand we live in a competitive world and clubs are always looking for a new advantage, but this is not a simple issue to work through."

Mr Gale said such testing was contrary to United Nations privacy laws and other international treaties.

"What if a young superstar gets DNA tested, shows he has a chance of developing a crippling illness by the time he is 35, and is ignored in the draft? And should the club tell him?

"There is no doubt players would be denied a chance to play AFL football if their DNA results indicated there was a possibility of (their) not being as strong or as fast as the next player in line. It would be in breach of every equal opportunity law."

AFL spokesman Patrick Keane said DNA testing was something it would need to refer to its medical officer and medical commissioner. "We have not had an official inquiry (from any club) at this stage," he said.

hhh
21-06-2005, 09:27 PM
I'm all for it. Next step - genetic engineering and player cloning. Expect a team of Buckley's running around in the black and white in a few years.

The problem is getting someone to fix hamstring injuries in the AFL within 5-10 years....

injuryupdate
22-06-2005, 07:06 PM
DNA testing is the biggest crock I have ever heard of. Why bother to ban it? Any club stupid enough to waste money on this should hang their head in shame. Athletic ability has minimal correlation with how good a football player you are and DNA testing would have very little correlation with athletic ability. I would be amazed if DNA testing would be able to be good enough to make the error in telling the tester that, for example, Greg Williams was going to be too slow to make it in the AFL. There is no way DNA testing could show that he was going to be a ball magnet. If a club wants to know how fast a player is going to be, they can do a 40m sprint test for a lot less than a DNA test. Then if they are silly enough to base their recruiting on this, rather than whether the player can actually play, they are welcome to waste all of their draft picks.

On this topic, the only scientific test that could (and perhaps should more often) be used in this regard is X-rays of draft age players to test for skeletal maturity. It could be a minimal factor that you could go on if there were two key position players at age 17 that were both 180cm and equally good at marking, but one was skeletally 20 and the other was skeletally 15 (meaning he would probably grow another 10cm compared to 0cm) then you would go with the skeletally less mature player.

It might be more important to show that a bloke was going to kick on size wise. Who cares whether he was the father of Tony Abbott's ex-girlfriend's son (which is all that DNA testing is useful for)? OK, DNA testing might be useful for one more thing - check the footy at the end of the game and see who has the most DNA on it. Better still, use fingerprints, or better still, watch a tape of the frigging game.

injuryupdate
27-06-2005, 08:44 AM
Abstract from the latest edition of Med Sci Sports Exer:

Finding out how tall a rookie player's parents are might be more accurate than DNA testing at working out whether they are going to kick on maturity-wise:

Maturity Status of Youth Football Players: A Noninvasive Estimate.
Medicine & Science in Sports & Exercise. 37(6):1044-1052, June 2005.
MALINA, ROBERT M. 1; CUMMING, SEAN P. 2; MORANO, PETER J. 3; BARRON, MARY 4; MILLER, SUSAN J. 4
Abstract:
Purpose: To estimate the biological maturity status of youth football players 9-14 yr old using a noninvasive method and to compare the body size of players of contrasting status.

Methods: Subjects were members of youth football teams in two central Michigan communities. Height and weight were measured on 653 boys 8.7-14.6 yr. Heights of biological parents of 582 boys were reported and subsequently adjusted for overestimation. Decimal age, height, and weight of the player and midparent height were used to predict mature (adult) height for the boy. Current height of each player was expressed as a percentage of his predicted mature height to provide an estimate of biological maturity status. Percentage of predicted mature height of each boy was expressed as a z-score to classify players into maturity groups. ANCOVA, controlling for age, was used to compare body size in contrasting maturity groups.

Results: Mean percentages of predicted mature height of the players matched those of longitudinal reference samples, but there was a trend for higher percentages among older players, suggesting advanced maturation. Overall, 405 boys were classified as on time/average in maturity status (69.6% [95%CI 65.7-73.3]), 154 were classified as early/advanced (25.5% [95%CI 23.0-30.3]), and only 23 were classified as late/delayed (3.9% [95%CI 2.6-6.0]). The gradient for height, weight, and BMI was as follows: early > on time > late, and differences were greater for weight and the BMI than for height.

Conclusion: Percentage of predicted mature height attained at a given age appears to be a reasonable indicator of maturity status. The method needs to be validated with other more direct indicators (skeletal age, sexual maturation) and applied to other samples.