A Queensland gambling researcher believes pre-commitment gambling limits on poker machines could have a big impact on Australia's problem gamblers.

CQUniversity's Dr Matthew Rockloff believes Independent MP Andrew Wilkie's gambling limit system could be the best way to combat problem gambling.

Dr Matthew Rockloff"A pre-commitment system may have a significant impact on problem gambling, particularly if pre-commitment is mandatory for all players.

"People experiencing gambling problems are likely to circumvent the pre-commitment process if given an option, but a national system will help people control their own behaviour, without putting an unnecessary burden on players who are enjoying gambling products recreationally," Dr Rockloff explained.

Dr Rockloff believes primary prevention strategies, such as television advertisements, to warn players about the signs of problem gambling should continue. He also believes lower bet size limits may have some minor impacts.

"Governments should also take steps to encourage the uptake of the free and effective treatment programs currently available."

As poker machines are the most risky form of gambling in the country, Dr Rockloff believes a national focus on this type of gambling is an appropriate starting point in addressing the impacts of problem gambling.