title: Cardiorespiratory fitness selection standard and occupational outcomes in trainee firefighters.
abstract: BACKGROUND
  UK fire services have differing practices relating to the use of a cardiorespiratory fitness standard as a selection criterion for recruits.
  
  
  OBJECTIVE
  To establish whether a reduction in, or elimination of, a defined cardiorespiratory standard for firefighter recruitment impacted on a number of occupational and health-related outcomes.
  
  
  METHODS
  Data were collected on firefighter recruits from services which applied either a minimum recruit cardiorespiratory fitness standard of 42 ml O(2)/kg/min (398 full-time and 48 part-time recruits) or no such direct standard (198 full-time and 206 part-time subjects). VO(2) max estimated, where available, was also recorded and the impact of a reduction in the standard from 45 to 42 ml O(2)/kg/min assessed.
  
  
  RESULTS
  Twenty-five per cent of all recruits reported injury during training. Injury-related restrictions were more likely where no cardiorespiratory standard was applied for full-time recruits. For part-time recruits, higher VO(2) max (est.) predicted a lower incidence of injuries. Further adverse health-related outcomes were found for full-time and part-time recruits. Multiple regression analyses suggest that eliminating the 42 ml O(2)/kg/min cardiorespiratory standard at recruitment for full-time firefighters was associated with an 8% (95% CI 7.16-8.84) increase in subsequent injuries reported during training. For part-time firefighters, VO(2) max (est.) was inversely associated with 5% of the variation in injuries (95% CI 4.66-5.34).
  
  
  CONCLUSIONS
  Removal of a cardiorespiratory fitness standard was associated with adverse health and employment outcomes. Older age and gender were not associated with adverse outcomes. No reliable evidence of adverse outcomes from a reduction in a cardiorespiratory standard from 45 to 42 ml O(2)/kg/min was found.
authors.affiliation: Durham and Darlington Fire and Rescue Service, Occupational Health Service, County Hall, Durham DH1 5UY, UK. philip.wynn@durham.gov.uk
authors.forename: P
authors.initials: P
authors.lastname: Wynn
authors.forename: P
authors.initials: P
authors.lastname: Hawdon
mesh_terms: D000293:Adolescent; D000328:Adult; D005080:Exercise Test; D005260:Female; D061388:Firefighters; D006801:Humans; D008297:Male; D008875:Middle Aged; D016272:Occupational Health; D010101:Oxygen Consumption / Q000502:physiology; D010809:Physical Fitness / Q000502:physiology*; D014947:Wounds and Injuries; D055815:Young Adult