Figure 2.

The average peak overpressure (A,C) and impulse (B,D) as a function of sensor location (left wrist, right wrist, shoulder, and head). The comparison of the peak overpressure and impulse for the 20-inch and 29-inch barrel (A,B) indicates deployment of a shorter barrel results in increased pressure exposure (p < 0.005, ampersand indicates the only pair of groups where there were no statistically significant differences). The comparison of average peak overpressure (C) and impulse (D) values recorded when 29-inch barrel was used during the training, in five shooting configurations: prone, standing, window, tower and kneeling. Groups exceeding statistical significance threshold p < 0.005 are marked with asterisk.