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Quantifying fatigue in working divers

C Lemaire, E L Murphy, P Gourret

    Aviation, Space, and Environmental Medicine
    |October 1, 1978
    PubMed
    Summary
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    Professional divers

    Area of Science:

    • Occupational Health
    • Diving Medicine
    • Human Physiology

    Background:

    • Professional diving involves strenuous activities and potential physiological stress.
    • Assessing diver fatigue is crucial for operational safety and performance.
    • Previous research has not fully quantified fatigue markers in diverse diving scenarios.

    Purpose of the Study:

    • To investigate physiological and subjective markers of fatigue in professional divers.
    • To correlate diver-reported fatigue with objective physiological measurements.
    • To evaluate the impact of different diving activities on diver well-being and performance.

    Main Methods:

    • Observation of 30 professional divers over one month across various diving types.
    • Twice-daily self-measurements of oral temperature, heart rate, breathhold time, and sleep.

    Related Experiment Videos

  • Subjective fatigue estimation and handgrip strength assessment.
  • Data analysis comparing diving and non-diving days, and different work types.

    • Main Results:

    • Subjective fatigue correlated with increased evening oral temperature and heart rate.
    • Breathhold times decreased significantly from morning to evening in tiring conditions.
    • Diving reduced sleep duration and quality, particularly during saturation dives.
    • Individual divers exhibited significant performance variations, highlighting personalized fatigue responses.

    Conclusions:

    • Objective physiological and subjective self-assessments effectively indicate diver fatigue.
    • Diving activities, especially saturation diving, negatively impact sleep and recovery.
    • Monitoring fatigue markers can help determine safe diving limits and optimize work rotations.
    • This approach supports the development of evidence-based safety protocols for professional divers.