Firefighters' feet

NewsBot · Apr 4, 2022

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Firefighters' feet: Differences by sex and weight-bearing
Jeyeon Jo et al
Appl Ergon. 2022 Mar 25

Firefighters have reported their protective boots to be bulky and ill-fitting, which they believe restrict the lower body movement on the unpredictable fireground. This study used 3D foot scanning to compare the shape of firefighters' feet to the general population, the shape of female firefighters' feet to males, and the impact of the heavy fire gear on foot shape. The results found the foot breadth of firefighters was larger than the general population and the feet of female firefighters were slimmer than males. Furthermore, it revealed that the feet of firefighters became longer, wider, and flatter when bearing the weight of fire gear. Protective boots should be designed based on the foot shape and dimensions of the actual population, with consideration of sex differences and the impact of weight-bearing for their safety.
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NewsBot · Apr 4, 2022

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NewsBot · Oct 4, 2023

Fit of fire boots: Exploring internal morphology using computed tomography scan
Jeyeon Jo 3t al
Int J Occup Saf Ergon. 2023 Aug 18;1-28

Fit of fire boots is a crucial factor in the safety and performance of firefighters on the hostile fireground. Firefighters have reported that ill-fitting fire boots restrict their lower body movement and sometimes cause very dangerous situations by falling off behind the wearer. By using computed tomography (CT), this study demonstrated the potential to quantify and visualize the fit of fire boots, which previously relied on subjective feedback from the wearers. The high-resolution 3D models of two fire boot products allowed a detailed observation and measurement of the internal space of the boots. Also, the boot's internal dimension was compared to the foot measurement of local firefighters, showing the significant differences between the two boots. Lastly, simulation wrapping the 3D scanned foot with the boot revealed large void spaces around the toe box and ankle, as well as the narrower ball width of the boot than the foot.
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