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30 June 2009
As Australia recovers from its worst ever fire season, a study establishes for the first time the safe physical work standards that should be applied for the nation’s 220,000 volunteer firefighters.
The study by Deakin University PhD student Matt Phillips at the Bushfire Cooperative Research Centre found that the physical stress encountered by a firefighter could demand up to 95 per cent of the heart’s capacity and 90 per cent of the cardiovascular system’s capability.
By monitoring firefighters since the 2006–07 bushfire season, the study found that they typically worked a 14-hour day in sustained temperatures over 40 degrees.
“Firefighters who are not fit enough face increased risks of heart attacks and musculoskeletal injuries,” Mr Phillips said.
“My work comprehensively quantifies the musculoskeletal and aerobic demands of bushfire fighting and reveals issues of great potential concern. Surprisingly, before this project, the physical demands of Australian bushfire fighting work were largely unknown.”
Dr Brad Aisbett, Mr Phillips’ PhD superviser, said the results of this research form an important part of a broader firefighter health and safety project underway at Deakin.
“The health and safety of Australia’s firefighters is a national priority. Understanding the physical demands firefighters face during bushfire suppression underpins our understanding of how we can ensure our firefighters are fit and ready for duty. The physical demands faced by firefighters informs, accordingly, research into firefighters’ cardiovascular health and their hydration and nutrition needs when fighting fires,” he said.
The data collected, using monitoring equipment on firefighters, covered the physical tasks: how critical they were and how often they were done; stressfulness and the contributions of anaerobic and aerobic energy systems.
A complex work simulator was built to validate the data collected from the fire fighters, leading to what Mr Phillips described as a good scientific basis for risk minimisation for firefighters.
“From an emergency management point of view, the physical capacity of firefighters to operate under extreme environmental conditions is critical to both their effectiveness and long term safety,” he said.
“This project has developed a new pathway to quantifying the critical physical components of safe bushfire fighting work. It provides a scientific basis for fire agencies to develop health and safety guidelines that ensure firefighters remain safe on the fire ground.”
Mr Phillips suggests that rural firefighters do not need to have the fitness level of an Olympic level athlete for safe fire fighting.
“Often the fitness levels of rural firefighters are very representative of what we would expect from the wider Australian population,” he said.
“But to function effectively in prolonged, hot work conditions you need at least healthy levels of cardiovascular fitness and musculoskeletal stamina. Individuals with below average or low fitness levels run the risk of being physically overwhelmed by the potential demands of this job.”
The research, supported by the Country Fire Authority of Victoria, will be used to assist volunteer firefighters. A total of seven fire fighting agencies from NSW to Perth were involved in the study.
Mr Phillips said the research could also be applied to other volunteer agencies such as State Emergency Services, Coast Guard, Ski Patrol and Surf Lifesaving.
Deakin Media Relations
03 5227 2776; 0418 361 890
Matt Phillips, exercise and nutrition
science Phd student, speaks about the results
of his research into the health of firefighters