In the NFST, what factor often correlates with the ability to perform under stress?

The ability to perform under stress is closely related to physical endurance. Firefighters often face high-pressure situations that require sustained physical exertion, from carrying heavy equipment to executing physically demanding tasks like rescuing individuals or battling fires. High physical endurance allows firefighters to maintain their performance levels, manage fatigue, and make clear decisions, all of which are essential when under stress.

While cognitive workload and decision-making ability are indeed important, they are typically enhanced by good physical condition. If a firefighter is exhausted, their mental sharpness and decision-making skills may diminish as well. Time management skills are also relevant, but primarily in planning and executing tasks efficiently rather than directly correlating with stress management in acute situations. Thus, physical endurance stands out as a crucial factor in maintaining performance amid stressful circumstances encountered in firefighting.