Table 2.
Descriptive statistics for physiological measures, divided by scenario type and weapon rate of fire.
| Dependent variable | Don't- shoot scenarios | Shoot scenarios | Fluid hostility scenarios | |||
|---|---|---|---|---|---|---|
| AUTO | SEMI | AUTO | SEMI | AUTO | SEMI | |
| Peak HRa | 100.37 (2.92) | 101.22 (2.84) | 99.79 (2.69) | 100.92 (2.73) | 100.14 (2.78) | 101.49 (2.81) |
| Average HRa | 91.92 (2.88) | 93.01 (2.80) | 90.49 (2.80) | 92.78 (2.81) | 91.35 (2.76) | 92.84 (2.81) |
| Average HRVb | 51.05 (3.49) | 49.35 (4.03) | 54.46 (4.17) | 52.95 (3.79) | 54.58 (4.09) | 51.64 (3.98) |
| Max HR %c | 53.17% (1.58%) | 53.61% (1.53%) | 52.86% (1.45%) | 53.47% (1.50%) | 53.05% (1.50%) | 53.75% (1.50%) |
Data are presented as mean (± SE). HR, heart rate; AUTO, automatic rate of fire; SEMI, semi-automatic rate of fire.
a
Described in beats per minute.
b
Described as the standard deviation of normal-to-normal (R-R) intervals in milliseconds.
c
Described as percentage achieved of the estimated maximum HR based on age.