Acute Psychophysiological Relationships Between Mood, Inflammatory and XXXX Changes in Response to Simulated Physical Firefighting Work and Sleep Restriction.

@entity1 @entity650 @entity1356 @entity310 @entity701 @entity3646 @entity687 @entity688
UNASSIGNED: This study examined how changes in wildland firefighters' mood relate to cytokine and @entity701 levels in response to simulated physical firefighting work and sleep restriction. Firefighters completed 3  days of simulated wildfire suppression work separated by an 8-h (control condition; n  =  18) or 4-h sleep opportunity (sleep restriction condition; n  =  17) each night. Firefighters' mood was assessed daily using the Mood Scale II and Samn-Perelli fatigue scale. @entity1 also provided samples for the determination of salivary @entity701 and pro- ( @entity650 , @entity687 , @entity1356 , @entity310 ) and anti-inflammatory ( @entity3646 , @entity688 ) cytokine levels. An increase in the positive mood dimension Happiness was related to a rise in @entity687 and @entity310 in the sleep restriction condition. A rise in the positive mood dimension Activation among sleep restricted firefighters was also related to higher @entity650 levels. An increase in the negative mood dimension Fatigue in the sleep restriction condition was associated with increased @entity650 , @entity310 , @entity688 and @entity701 levels. In addition, an increase in Fear among sleep restricted firefighters was associated with a rise in @entity310 . Elevated positive mood and immune activation may reflect an appropriate response by the firefighters to these stressors. To further understand this relationship, subsequent firefighting-based research is needed that investigates whether immune changes are a function of affective arousal linked to the expression of positive moods. Positive associations between negative mood and inflammatory and @entity701 levels to physical work and restricted sleep provide useful information to fire agencies about subjective fire-ground indicators of physiological changes.
