ReviewFrontiers in physiology2026
Human limits in next-generation fighter aviation: psychophysiological stressors, readiness, health, performance, and countermeasures.
Review in Frontiers in physiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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8 authors.
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Abstract
The transition to fifth- and sixth-generation fighter aircraft is increasing the psychophysiological demands placed on military aircrew. Next-generation fast-jet operations combine sustained and repetitive high-G loading; intermittent hypoxia, hyperoxia, and hypobaria associated with unexplained physiological episodes; prolonged single-seat missions; advanced helmet-mounted displays; acoustic and thermal stress; and high cognitive load from sensor fusion, automation, and manned-unmanned teaming. These exposures challenge autonomic regulation, cerebral and respiratory physiology, neurocognitive performance, sensory integration, and central nervous system resilience. This narrative review synthesizes evidence across cardiovascular-autonomic and hemodynamic function; respiratory physiology and unexplained physiological episodes in the on-board oxygen generating system era; cognitive workload, fatigue, and pilot experience; visual-oculomotor, vestibular, auditory, thermal, and musculoskeletal stress; biological markers of neural strain; and aircrew surveillance and countermeasures. The organizing construct is psychophysiological readiness: the integrated capacity to meet mission demands without disproportionate physiological cost or degraded decision quality. Evidence from direct fifth-generation studies, other fast-jet operations, simulators, and controlled aerospace analogues shows measurable changes in heart rate variability, cerebral oxygenation and perfusion, cortical activity, sensory function, and neurostructural biomarkers, but direct fifth-generation evidence remains limited and responses are strongly individualized and context dependent. Current surveillance remains largely episodic and domain-siloed. We therefore propose a staged monitoring framework combining validated cardiovascular-autonomic and hemodynamic measures with neurocognitive, sensory, wearable, and biomarker data, while treating AI/ML as an experimental analytic layer requiring prospective validation. Longitudinal, career-spanning monitoring could ultimately support earlier identification of vulnerability and evidence-based optimization of training, recovery, and countermeasures while preserving human aeromedical oversight.
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