Heat Strain in Armored Vehicle Officers Wearing Body Armor
Author Information
Author(s): Stewart Ian B, Hunt Andrew P
Primary Institution: Institute of Health and Biomedical Innovation, Queensland University of Technology
Hypothesis
This study evaluated the heat strain experienced by armored vehicle officers (AVOs) wearing personal body armor (PBA) in a sub-tropical climate.
Conclusion
Despite personal risk factors and high outdoor temperatures, the work tasks of AVOs did not lead to excessive heat strain.
Supporting Evidence
- Core temperature and heart rate remained within safe limits during the shift.
- Six AVOs were dehydrated before the shift, indicating poor hydration practices.
- The average time spent outdoors was 8.6 minutes before returning to the vehicle.
Takeaway
The study found that even though the officers wore heavy body armor and worked in hot conditions, they didn't get too hot because they took breaks in a cooler vehicle.
Methodology
Twelve male AVOs wore PBA during an eight-hour shift while their heart rate and core temperature were monitored.
Potential Biases
Self-reported fitness levels may have been over-estimated.
Limitations
Data loss occurred for some participants, affecting the completeness of core body temperature and accelerometer data.
Participant Demographics
Twelve male AVOs aged 35-58 years, with a body mass range including five over 110 kg.
Statistical Information
P-Value
< 0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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