Effects of simulated firefighting on the responses of salivary cortisol, alpha-amylase and psychological variables.
Ergonomics
; 52(4): 484-91, 2009 Apr.
Article
em En
| MEDLINE
| ID: mdl-19401900
ABSTRACT
The aim of this study was to evaluate the effects of a simulated firefighting intervention on salivary alpha-amylase (sA-A), free cortisol (sC), anxiety (STAI), and profile of mood states (POMS) in 20 male firefighters (age 32 +/- 1 years, VO(2peak) 43 +/- 5 ml/kg per min). During the 12-min firefighting intervention (ambient temperature 13 +/- 1 degrees C; relative humidity 63 +/- 1%), individuals spent 63 +/- 28% of the time working at heart rate (HR) >85% of individual HR(max), [La] (peak) 9.2 +/- 2.9 mM and ratings of perceived exertion 16 +/- 2. At 30 min post-intervention significant (p < 0.001) increases in sA-A (174%) and sC (109%) were found with regard to values recorded before and after 90 min of the firefighting intervention. Since no differences emerged between pre-intervention and post intervention for STAI and POMS values, the hormonal changes were attributable to the intense physical stress of the simulated intervention. Further research is needed during real firefighting activities, where high emotional stress may also be present.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ansiedade
/
Estresse Fisiológico
/
Hidrocortisona
/
Alfa-Amilases Salivares
/
Incêndios
/
Doenças Profissionais
Tipo de estudo:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Ergonomics
Ano de publicação:
2009
Tipo de documento:
Article