Table 2 Mean travel for self-extrication with and without collar application
Mean cervical AP travel (mm) | Mean cervical LR travel (mm) | Mean cervical Roll travel (degree) | Mean cervical Pitch travel (degree) | Mean cervical Yaw travel (degree) | |
|---|---|---|---|---|---|
Collar application | 4.9 | 2.2 | 6.5 | 13.7 | 20.1 |
Self-extrication with collar | 4.7 | 4.8 | 14.0 | 13.1 | 12.2 |
Self-extrication no collar | 9.4 | 6.8 | 20.1 | 26.9 | 26.7 |
Differencea | − 0.1 | − 0.1 | − 0.5 | 0.1 | − 5.5 |