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Flight controller alertness and performance during spaceflight shiftwork operations.

S M Kelly1, M R Rosekind, D F Dinges

  • 1NASA Johnson Space Center, USA.

Human Performance in Extreme Environments : the Journal of the Society for Human Performance in Extreme Environments
|August 23, 2002
PubMed
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Shiftwork negatively impacts alertness and performance in Mission Operations Directorate (MOD) personnel. Further research is needed to establish baseline data and develop countermeasures for fatigue and circadian disruption during Space Transportation System (STS) operations.

Area of Science:

  • Aerospace Medicine
  • Human Factors Engineering
  • Sleep Science

Background:

  • Shiftwork in Mission Operations Directorate (MOD) personnel leads to decreased alertness and performance.
  • Fatigue, sleep loss, and circadian disruption are significant challenges for 24-hour operations.
  • Space Transportation System (STS) operations require continuous coverage of critical tasks.

Purpose of the Study:

  • To examine the effects of shiftwork on flight controllers within the MOD.
  • To conduct an initial operational test of procedures and measures for assessing alertness and performance.
  • To gather baseline data on alertness and performance during MOD shiftwork operations.

Main Methods:

  • Utilized a Background Questionnaire, a daily logbook for sleep and work patterns, and a performance/mood test battery.

Related Experiment Videos

  • Administered tests at the beginning, middle, and end of each shift.
  • Collected data from 17 flight controllers across 3 Orbit shifts during the STS-53 mission.

    • Main Results:

    • Initial results indicate a clear need for further data collection across multiple STS missions.
    • Baseline levels of alertness and performance during MOD shiftwork require documentation.
    • The study highlights the pertinence of these issues for night shift operations and transitions.

    Conclusions:

    • Further data collection is essential to document baseline alertness and performance in MOD shiftwork.
    • Countermeasure strategies are being developed to mitigate fatigue and circadian disruption.
    • Addressing sleep and circadian disruption remains critical for future extended duration missions and Space Station operations.