D I Tepas

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Data obtained from surveys of two samples of maritime crew members were studied for differences in self-reported sleep lengths and sleep problems. The data addressed both on- and off-duty variables. Statistical analysis of the data found that on-duty sleep length was shorter than off-duty sleep length for both groups. The two groups' responses to various(More)
  • Laurence R Hartley, Fulvio Penna, Anne Marie Feyer, Sydney, Per Garder, N Haworth +5 others
  • 2001
1. FOREWORD In order to obtain a comprehensive review of fatigue literature a wide variety of data bases, organisations and researchers had to be consulted. Below is list of the major sources of information obtained for this review: Over two hundred articles were collected and reviewed under the following headings 1. Fundamental factors • time on task •(More)
Fatigue has often been viewed as a simple variable that is positively correlated with time on task in the workplace and is produced mainly by physical activity. However, shiftwork researchers have demonstrated time-of-day differences for variables including sleepiness and mood, thereby challenging this notion of fatigue. Using a within-subjects design, the(More)
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