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Energy cost associated with moving platforms.

Carolyn A Duncan1, Scott N MacKinnon2, Jacques F Marais3

  • 1Department of Kinesiology and Integrative Physiology Michigan Tech Houghton, MI, USA.

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Summary
This summary is machine-generated.

Motion-induced fatigue significantly increases energy costs (EC) for seafarers, especially during demanding tasks. Understanding these metabolic costs is crucial for mitigating fatigue and enhancing safety in maritime environments.

Keywords:
Energy costMotion induced fatigueMoving environments

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Area of Science:

  • Human physiology
  • Occupational health
  • Maritime safety

Background:

  • Motion-induced fatigue is linked to performance decline, accidents, and injuries.
  • The specific impact of continuous platform motion on energy expenditure for seafarers is not well understood.

Purpose of the Study:

  • To quantify the metabolic energy cost (EC) of maintaining postural stability in a simulated maritime environment.
  • To investigate the relationship between motion intensity and physiological responses.

Main Methods:

  • Twenty healthy volunteers participated in the study.
  • Participants performed tasks on a platform simulating various sea conditions (static, low, and high motion).
  • Metabolic EC and heart rate were continuously monitored using indirect calorimetry and heart rate monitors.

Main Results:

  • Metabolic EC increased significantly with greater platform motion intensity.
  • Energy costs were notably higher during standing and lifting tasks, increasing by 50% in high-motion conditions.
  • Elevated heart rates correlated with increased motion and metabolic demand.

Conclusions:

  • Maritime platform motion significantly elevates metabolic costs, dependent on task and motion magnitude.
  • These findings highlight the importance of considering motion-induced fatigue in occupational settings to prevent operator fatigue and potential incidents.