On The Line

Never before have wildland firefighters been assessed for physiological changes over the course of an entire fire season. Until now. Dr. Trey Coker from the University of Alaska Fairbanks teamed up with our own Dr. Brent Ruby to investigate seasonal alterations in a group of firefighters, and their surprising results have led to more questions than answers. Coker and Ruby join the podcast to discu...

The Work Capacity Test, otherwise known as the pack test, has been in use for nearly 25 years. Designed as a measure of muscular strength and aerobic capacity, the arduous version of the test entails hiking three miles on even terrain while carrying 45 pounds in 45 minutes or less. Drs. Brent Ruby and Matt Bundle join host Charlie Palmer to discuss the science behind the pack test, misconceptions...

Maclean. The name is synonymous with many things: great writing, fishing, and fire to name just a few. On this, the tenth and final episode of season one, author John Maclean joins the podcast, along with University of Montana researcher Brent Ruby and host Charlie Palmer to discuss South Canyon, the history of hotshots, and John's current book project on the Yarnell Hill fire that killed nineteen...

About 42,000 Americans take their own lives every year. While no known research has looked specifically at suicide prevalence rates within wildland firefighters, it appears to be a major concern within our population. Studies looking at structural firefighters indicate that they are three times more likely to die by suicide than a line of duty death. University of Montana professors Annie Sondag f...

Few people can claim to possess a fire career that spans over four decades. From being a first year firefighter with the California Division of Forestry in the 1970's, to thirty-four years of smokejumping with the Forest Service, and ending with a final six year run with the Montana Department of Natural Resources and Conservation, Wayne Williams possesses a depth of capabilities and a wealth of k...

Dr. Chuck Dumke and Dr. Brent Ruby from the University of Montana re-join the podcast to discuss this vital component of performance. Hydration plays an important role in firefighter safety, and yet at times its significance has been over-emphasized. "Hydration is not a rescue from heat related injuries. It's an important component to avoid hypo-hydration, but hydration isn't going to rescue you f...

Firefighters can expend upwards of 6200 calories per day during rigorous operations. Therefore, what they eat, when they eat, and how much they eat become extremely important factors that must be taken in to consideration by not only the firefighters themselves but also fire managers. Dr. Brent Ruby, director of the Montana Center for Work Physiology and Exercise Metabolism and professor in UM's H...

Not only are firefighters exposed to wood smoke as a part of their occupations, but so too are millions of humans across the globe who must contend with this byproduct of combustion in the places they live. In this episode of "On the Line", University of Montana exercise physiologist Dr. Chuck Dumke is joined by wood smoke researcher Dr. Tony Ward from the University of Montana's School of Public...

In this episode of On the Line, University of Montana biomechanist Matt Bundle and clinical psychology doctoral student Patty O'Brien join the podcast to discuss the concept of recovery and how it relates to wildland firefighters. Some of the science behind recovery is examined, and the roles of rest, sleep, and nutrition are also reviewed.   This podcast was made possible in part through support...

Although thousands of wildland firefighters are employed every year, and despite the fact that many of them sustain injuries while on the fireline or preparing themselves for the rigors of the job, very little is known about wildland firefighters and injury from a research perspective. In this episode, Dr. Valerie Moody from the University of Montana Athletic Training Program joins moderator Charl...

According to the National Institute for Occupational Safety and Health, Rhabdomyolysis, or rhabdo, is "a medical condition associated with heat stress and prolonged physical exertion, resulting in rapid breakdown, rupture, and death of muscle. When muscle tissue dies, electrolytes and large proteins are released into the bloodstream that can cause irregular heart rhythms and seizures, and damage t...

In this debut podcast of "On the Line", moderator Charlie Palmer, along with University of Montana professors Dr. Chuck Dumke and Dr. Brent Ruby discuss heat related illnesses/injuries (HRI's) for wildland firefighters. HRI's fall along a continuum of severity, with heat cramps being the mildest form, through heat exhaustion, and lastly heat stroke, the most severe, life-threatening type of HRI. W...