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The influence of short-term firefighting activity on information processing performance.

Tina A Greenlee1, Gavin Horn, Denise L Smith

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Simulated firefighting (FF) under heat stress temporarily improved reaction times but did not affect accuracy. Incident rehabilitation (IR) showed no performance benefits for firefighters.

Keywords:
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Area of Science:

  • Occupational Health
  • Human Performance
  • Environmental Physiology

Background:

  • Firefighting (FF) involves strenuous activity under heat stress.
  • Cognitive performance impacts firefighter safety and effectiveness.
  • The role of incident rehabilitation (IR) on post-incident performance is not well understood.

Purpose of the Study:

  • To assess the impact of simulated FF on sustained attention and reaction time (RT).
  • To determine if IR influences cognitive performance post-FF.
  • To explore links between performance, affect, and personality traits in firefighters.

Main Methods:

  • Firefighters completed ~18 minutes of simulated FF under heat stress.
  • Cognitive (sustained attention, RT, accuracy), physiological, and psychological assessments were conducted pre- and post-FF, IR, and recovery.
  • Personality traits and perceived affect (energy, tiredness, anxiety) were measured.

Main Results:

  • Simulated FF initially led to faster RTs, with accuracy remaining unchanged.
  • Perceived energy and tiredness at baseline correlated with post-FF RT.
  • Conscientiousness was associated with faster RTs.
  • IR did not significantly influence performance outcomes.
  • Affective states (energy, tiredness, anxiety) fluctuated immediately post-FF but returned to baseline within 120 minutes.

Conclusions:

  • Simulated firefighting under heat stress temporarily enhances reaction speed but not accuracy.
  • Incident rehabilitation does not appear to improve cognitive performance in the immediate post-incident period.
  • Baseline psychological factors like perceived energy and conscientiousness influence cognitive performance during and after firefighting tasks.