When considering armor systems, QG II tended to measure lower in both intrinsic clothing insulation
and intrinsic clothing evaporative resistance as compared to QG IV Ventilated and QG IV Not
Figure 5. Significant differences for microclimate temperature among armor systems in Kevlar1 based on post
hoc Tukey.05 analysis.
Figure 6. Significant differences for microclimate temperature among armor systems in Dyneema based on
post hoc Tukey.05 analysis.
Table 5. Summary of Statistical Results.
Ballistic Material Armor System
Significant
Difference Explanation
Significant
Interaction
Significant
Difference Explanation
Rcl Yes Dyneema1 <
Kevlar1
No Yes 2 groups; first group: QG
IV Not Ventilated and
QG IV Ventilated;
second group: QG IV
Ventilated and QG II
Recl Yes Dyneema1 <
Kevlar1
No No
Microclimate
temperature
Simple effect; Yes Dyneema1 <
Kevlar1 for
QG II and
QG IV
Ventilated
only
Yes Simple effect; Yes Kevlar1: QG II < QG IV
Ventilated and QG IV
Not Ventilated;
Dyneema1: QG II and
QG IV Not Ventilated
< QG IV Ventilated
Moisture
retention
Log-transformed
data; Yes
Dyneema1 >
Kevlar1
No Log-transformed
data; No
Note: QG ¼ quadguard; SD ¼ standard deviation.
60 Clothing and Textiles Research Journal 33(1)
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Ventilated. However, statistically, there was no significant difference between QG II and QG IV Ventilated
in Rcl and there was no significant difference between the three armor systems in Recl. SinceQG
II covers the least amount of surface area and provides the least amount of protection, it would be
expected that QG II would measure the lowest in both intrinsic clothing insulation and evaporative
resistance. Statistical comparisons in Rcl and Recl indicate that design features such as ventilation have
the potential to reduce thermal stress on the human body when protective clothing is necessary.