Modeling the Effect of Days Underway and Environmental Motion on Crew Physical Activity on Naval Vessels
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Authors
Matsangas, Panagiotis
McCauley, Michael
Subjects
Advisors
Date of Issue
2015-12
Date
December 2015
Publisher
Language
Abstract
Results from earlier research on crew activity
onboard naval vessels suggest that personnel
activity is a function of two components,
time underway, and ship motion severity.
Physical activity reduction was attributed
to some combination of sopite syndrome
and motion-induced fatigue. Although
both stressors are a well-recognized
problem in the naval environment, few
studies have addressed them. Building
on earlier findings, this work proposes a
mathematical model to account for the
effect of motion and days underway on
the observed personnel physical activity.
Model predictions are evaluated against a
retrospective analysis of existing actigraphic
recordings from three earlier projects in the
naval operational environment. Analysis
showed that the model predicts activity with
a good approximation. These results further
validated the effect of the days underway
and motion component in predicting
personnel activity. The observed reduction
in physical activity may be a valuable
surrogate indicator of sopite syndrome and
motion-induced fatigue. Future research
efforts should incorporate the effect of sleep,
mission requirements, and the occupational
component of crew physical activity.
Type
Article
Description
Series/Report No
Department
Operations Research (OR)
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
9 p.
Citation
Matsangas, Panagiotis, and Michael McCauley. "Modeling the Effect of Days Underway and Environmental Motion on Crew Physical Activity on Naval Vessels." Naval Engineers Journal 127.4 (2015): 49-57.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.