ENERGY COSTS OF COMMON BUSHFIRE FIGHTING TASKS

The following energy costs are estimates for a person weighing 70kg . Add or subtract 10 percent for each 7kgs above or below 70kgs.
BUSHFIRE FIGHTING TASKS ENERGY
(calories per minute)
Using a handtool: Digging or chopping with a Macleod Tool 7.5
Lifting and carrying light loads: Deploying or repositioning hose, drip torch operations 6.8
Chain sawing: Felling, limbing 6.2
Packing heavy loads: Knap Sack Spray 7.5 - 10
Hiking with light loads: Field pack and tools 6.5
Performing under adverse conditions: Long work shifts; rough, steep terrain; heat, smoke; insufficient food, fluid replacement, sleep. 6.5 - 10+

SOURCE: Brian Sharkey, Fitness and Work Capacity USDA Forest Service Technology & Development Program Missoula, Montana. April 1997.