Differential 24-h variations of alertness and subjective tension in process controllers: investigation of a relationship with body temperature and heart rate - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chronobiology International Année : 2008

Differential 24-h variations of alertness and subjective tension in process controllers: investigation of a relationship with body temperature and heart rate

Magali Cariou
  • Fonction : Auteur
Claudine Mélan
  • Fonction : Auteur
  • PersonId : 1020352

Résumé

The effects of shift and time-on-shift on alertness and perceived tension, and related physiological variables were investigated in satellite controllers working a rapid forward rotating 3-shift system. In controlled laboratory conditions subjective tension and heart rate have been reported to display circadian variations and a marked sensitivity to external factors. We examined whether in real-job conditions circadian variations were masked for these particular variables, unlike for alertness and body temperature which have been repeatedly shown to display circadian variations in these conditions. This hypothesis was tested in a repeated measures design by collecting alertness and tension self-reports, and recording operators' sublingual temperature on 3 occasions on each shift, and heart rate continuously throughout shifts. Alertness and body temperature varied according to a typical diurnal trend, subjective tension was only enhanced on the initial recording of each shift (compared to the remaining), while heart rate displayed an intermediary trend. Intra-subjects correlations revealed a positive relationship between alertness, oral temperature and heart rate, while no such relationship was found for subjective tension. These results support the hypothesis of a close dependence for alertness and temperature, and to a lesser extent for heart rate, on endogenous mechanisms in this job-situation. In addition, some situation-specific factors, such as job-demand, would affect subjective tension and partially mask the circadian variations in heart rate.

Domaines

Psychologie
Fichier principal
Vignette du fichier
Cariou_Galy_Melan chronobiology international.pdf (114.75 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03063837 , version 1 (14-12-2020)

Identifiants

  • HAL Id : hal-03063837 , version 1

Citer

Magali Cariou, Edith Galy, Claudine Mélan. Differential 24-h variations of alertness and subjective tension in process controllers: investigation of a relationship with body temperature and heart rate. Chronobiology International, 2008. ⟨hal-03063837⟩
23 Consultations
45 Téléchargements

Partager

Gmail Facebook X LinkedIn More