Related Experiment Video
Updated: Jun 24, 2026

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
Published on: August 8, 2019
Safe Sleep, Safe Flight: A Fatigue-Readiness Framework for Air Medical Operations
1Research Organization, Shimonoseki City University, Shimonoseki, Japan; Department of Healthcare Information Management, The University of Tokyo Hospital, Tokyo, Japan; Health and Global Policy Institute, Tokyo, Japan.
None:
Fatigue is a predictable operational hazard in air medical transport, impairing vigilance, reaction time, decision making, and communication-capabilities essential for both aviation and critical care. Despite widespread emphasis on team communication and risk management, fatigue is often managed informally at the individual level. We propose a practical fatigue-readiness framework for rotor- and fixed-wing air medical programs centered on 2 checkpoints: a routine readiness check at the start of shift and a premission "Safety Pause" for elevated-risk operations. The framework optionally incorporates objective alertness assessment (eg, brief psychomotor vigilance testing [PVT]) to complement subjective self-assessment and uses a green/amber/red ladder to guide mitigation and documentation in a nonpunitive manner. Drawing on air medical experience with PVT, established aviation fatigue countermeasures, and health care fatigue risk management literature, we discuss implementation considerations, governance needs, and limitations. A single, standard operating procedures-ready figure summarizes the workflow and provides a shared vocabulary for team-based readiness decisions. Implementation requires explicit nonpunitive governance, protected reporting, and careful attention to privacy to avoid unintended deterrence of fatigue disclosure. The intent is to shift fatigue management from "endurance" to "readiness" while preserving operational feasibility and psychological safety for crew members.
Related Concept Videos
Insufficient Sleep and Sleep Deprivation
Sleep deprivation is a more severe form of sleep loss...
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Fatigue
Substance Use Disorders Affecting Sleep
Understanding the concepts of physical dependence,...
Narcolepsy
Acute Respiratory Failure-IV
