Abstract 22

Mean (SEM) for selected variables at 8, 10, and 12 km/hr for wire gauze and visor fencing masks

VO2 (ml/kg/min)PiO2 (mm Hg)PiCO2 (mm Hg)
Velocity (km/hr)810128101281012
*Implies PiO2 significantly less than wire gauze at p<0.01.
†Implies PiCO2 significantly greater than wire gauze at p<0.01.
Wire gauze29.8 (1.4)34.1 (1.9)38.1 (1.5)153.5 (1.1)153.5 (0.8)153.2 (1.0)3.4 (0.6)3.4 (0.7)3.5 (0.7)
Visor 131.0 (1.9)35.1 (2.0)38.6 (2.0)148.2 (1.1)*148.2 (0.7)*148.9 (0.9)*7.6 (0.7)†8.6† (0.7)†8.2 (0.8)†
Visor 229.8 (2.3)35.1 (2.7)39.3 (3.4)148.2 (1.0)*148.9 (0.8)*148.9 (0.9)*7.7 (0.7)8.4 (0.6)†9.1 (0.8)†