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International Journal of Interdisciplinary Research

Table 1 Ear-canal temperature and microclimate inside a helmet (Mean ± SD)

From: Combined effect of facial sweating and mounting a night vision device on helmet stability

Measured outcomes Condition A. moving boxes side to side B. shooting in a prone position
1st phase [No Sweating] 2nd phase [Sweating] 1st phase [No Sweating] 2nd phase [Sweating]
Ear-canal temperature (°C) BH 35.65 ± 0.43 36.40 ± 0.39 35.92 ± 0.52 36.37 ± 0.41
BH–NVD 35.60 ± 0.56 36.35 ± 0.60 35.74 ± 0.58 36.29 ± 0.60
Temperature inside a helmet (°C) BH 25.61 ± 0.65 28.81 ± 1.03 26.11 ± 0.54 29.00 ± 0.93
BH–NVD 26.30 ± 0.59 29.50 ± 0.48 26.95 ± 0.69* 29.56 ± 0.38
Humidity
inside a helmet (%RH)
BH 39.9 ± 9.5 77.1 ± 11.8 48.4 ± 8.5 84.7 ± 10.1
BH–NVD 42.6 ± 6.2 84.2 ± 3.4 53.1 ± 13.4 89.1 ± 8.9
  1. BH ballistic helmet, BH-NVD ballistic helmet with a night vision device
  2. *Significantly different from BH (P < 0.05); Significantly different from the 1st phase (P < 0.05)