Table 2

‚ÄÉHead to head impact test data

HeadgearSpeed (m/s)Front boss to sideForehead to rear
Peak linear accel. (g)HIPmax (kW)HIP concussion risk (%)Peak linear accel. (g)HIPmax (kW)HIP concussion risk (%)
accel., acceleration; HIPmax, maximum Head Impact Power.
Bare head231.41.5<539.72.1<5
381.47.010.984.16.28.4
4120.213.655.9132.313.655.7
5160.921.5>95168.519.892.0
A220.61.1<523.71.2<5
355.24.65.060.04.1<5
4106.211.840.3107.210.932.7
5144.420.393.1151.117.885.0
B225.71.4<526.31.3<5
359.74.95.468.04.85.3
497.910.428.6116.811.840.3
5140.218.086.0157.018.688.3
C210.10.7<513.10.7<5
326.62.4<529.21.9<5
469.47.814.061.25.87.3
588.412.445.492.810.832.2