What should be the position of the firefighter's legs to maintain balance while advancing a hose line?

The correct position for a firefighter's legs while advancing a hose line is to have the legs outstretched, which helps maintain balance and stability. When the legs are extended, it allows the firefighter to create a solid base of support. This posture engages the core and lower body muscles, helping to counteract the push of the water as it's flowing through the hose.

Maintaining balance is critical, especially under the dynamic conditions often encountered during firefighting operations, such as uneven or slippery surfaces.

Other positions, such as bending at the knees, can lead to a more unstable posture and a higher risk of losing balance as a firefighter maneuvers the hose. Crossing the ankles can impede mobility and create an awkward stance that detracts from stability. Hunching forward could negatively affect one's center of gravity and make it more difficult to respond to any sudden changes in movement or balance when advancing the hose line. Therefore, the most effective position for advancing the hose line is with the legs outstretched.