Table 1.

Analysis of blast curve for each injury group.

	10 psi	17 psi
Peak pressure (psi)	9.93 ± 0.90	16.33 ± 2.11
Positive duration (ms)	1.73 ± 0.05	2.25 ± 0.06
Positive impulse (psi * ms)	6.96 ± 0.76	12.21 ± 1.76
Rise time (ms)	0.04 ± 0.03	0.03 ± 0.02
Negative duration (ms)	1.58 ± 0.29	0.92 ± 0.07
Negative impulse (psi * ms)	1.11 ± 0.28	0.94 ± 0.08

The profiles were broken into two phase: positive and negative. Impulse was defined as the integral of each phase, duration was the length of time for each phase. Data expressed as mean ± SD.