The Australian Crime Commission report allows police and sporting administrations to act, says Dr Peter Larkins.
The NRL could become embroiled in the AFL's doping saga with the sports science expert at the centre of Essendon's controversy also having worked for five NRL clubs.
A sports conditioning expert says there is no clinical evidence that peptides boost performance. Source: Supplied
Victory University Institute of Sport's Simon Outram chats to Fox Sports News about the use of performance-enhancing drugs in light of the Essendon stimulant scandal.
A LEADING high-performance expert says it would be foolish for professional sporting clubs to dabble in illegal peptides, claiming there is no clinical evidence they enhance performance in AFL or rugby league.
The strength-and-conditioning coach, speaking on condition of anonymity, said peptide use could be more beneficial for NRL clubs than their AFL counterparts given their ability to build mass.
Currently working in the AFL, he explained why sporting teams would be playing with fire by using illegal peptides such as GHRP6.
"I do lectures on drugs in sport and I make it my business to know about these things.
"I have never heard this (peptide use) mentioned in the sport so if Essendon are doing it, it is certainly not commonplace," the high-performance guru said.
"In sport, there are some areas you can push boundaries in and this is one, with peptides, where you don't push the boundaries.
"We would be naive if we thought it wasn't happening, but I don't know of anyone (in AFL or rugby league) who is using it. There is no evidence to prove (using peptides) actually works.
"Peptides such as GHRP6 are designed to produce growth hormone which helps with muscle mass, so if anything it would be more useful with rugby league athletes than those in the AFL.
"There are hundreds of peptides. Some are legal and some are not, and that is what ASADA will have to work out from this investigation.
"Most blokes in our field would not go near this stuff. There is no real research on the effects on the body and how effective it is.
"If Essendon are doing it, it is certainly not commonplace."
The conditioning expert said muscle-building peptides were easily obtainable over the internet, but he was not convinced any use was endemic in Australian sport.
"You can't buy them over the counter," he said. "They are approved for research-purposes only and the only place you can really get them is over the internet."
He said there were legitimate uses for peptides, such as fighting muscle-wasting diseases. "They are used on cancer patients, aged patients and people with muscular distrophy," he said.
"If you inject GHRP, it stimulates the release of another hormone called ghrelin, and that stimulates the pituitary glands, which re-leases growth hormone and builds muscle.
"If you had an injection and went out and played it would make no difference, but if you took it through an off-season it would add muscle and make you a better athlete. The only reason it would be of use in AFL is if you had someone small who needed more size.
"We are talking about complex sports science and it's possible clubs are using some peptides that aren't banned."
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