Show simple item record

dc.contributor.authorVincent, Graceen_US
dc.contributor.authorFerguson, Sallyen_US
dc.contributor.authorLarsen, Briannaen_US
dc.contributor.authorRidgers, Nicolaen_US
dc.contributor.authorSnow, Roden_US
dc.contributor.authorAisbett, Braden_US
dc.description.abstractPurpose: To examine the effects of sleep restriction on firefighters’ physical task performance, physical activity, and physiological and perceived exertion during simulated hot wildfire conditions. Methods: 31 firefighters were randomly allocated to either the hot (n = 18, HOT; 33 °C, 8-h sleep opportunity) or hot and sleep restricted (n = 13, HOT + SR; 33 °C, 4-h sleep opportunity) condition. Intermittent, self-paced work circuits of six firefighting tasks were performed for 3 days. Firefighters self-reported ratings of perceived exertion. Heart rate, core temperature, and physical activity were measured continuously. Fluids were consumed ad libitum, and all food and fluids consumed were recorded. Urine volume and urine specific gravity (USG) were analysed and sleep was assessed using polysomnography (PSG). Results: There were no differences between the HOT and HOT + SR groups in firefighters’ physical task performance, heart rate, core temperature, USG, or fluid intake. Ratings of perceived exertion were higher (p < 0.05) in the HOT + SR group for two of the six firefighting tasks. The HOT group spent approximately 7 min more undertaking moderate physical activity throughout the 2-h work circuits compared to the HOT + SR group. Conclusion: Two nights of sleep restriction did not influence firefighters’ physical task performance or physiological responses during 3 days of simulated wildfire suppression. Further research is needed to explore firefighters’ pacing strategies during real wildfire suppression.en_US
dc.relation.ispartofjournalInternational Archives of Occupational and Environmental Healthen_US
dc.subject.fieldofresearchPublic Health and Health Services not elsewhere classifieden_US
dc.subject.fieldofresearchPublic Health and Health Servicesen_US
dc.titleAdding sleep restriction to the equation: impact on wildland firefighters' work performance and physiology in hot conditionsen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Articlesen_US
dc.type.codeC - Journal Articlesen_US
gro.hasfulltextNo Full Text
gro.griffith.authorLarsen, Brianna

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record