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Stress and workload in pilots.

A H Roscoe

    Aviation, Space, and Environmental Medicine
    |April 1, 1978
    PubMed
    Summary

    Pilot heart rate increases during demanding flight tasks, not due to anxiety. Increased physiological activity is primarily linked to workload, not emotional stress, suggesting workload is a more accurate term.

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    Area of Science:

    • Aviation Physiology
    • Human Factors in Flight

    Background:

    • Pilot physiological responses, including heart rate, increase during flight operations, particularly takeoffs and landings.
    • Previous research attributed these changes to workload and psychological or emotional stress.

    Purpose of the Study:

    • To investigate test pilots' heart rate responses during diverse flight conditions.
    • To differentiate the impact of workload versus emotional stressors on pilot cardiovascular activity.

    Main Methods:

    • Analysis of heart rate data from test pilots during various flight trials.
    • Inclusion of varied scenarios such as VTOL takeoffs, automatic landings in fog, supersonic flight, and a medical emergency.

    Main Results:

    • Heart rate responses in experienced pilots are predominantly influenced by workload-related factors.
    • Emotional stressors like risk and anxiety were found to have minimal impact on heart rate in this context.

    Conclusions:

    • Pilot cardiovascular activity during flight is primarily driven by workload.
    • The term 'workload' is recommended over 'stress' to describe increased cardiovascular activity in pilots due to its less emotional connotation.

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