Table 3.
Average time interval (min) between impacts and head impact frequency (#) per game, distributed by MPS magnitude level.
| Magnitude Collapsed | Magnitude Category (MPS) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <8.0% | 8.0–16.9% | 17.0–25.9% | 26.0–34.9% | 35.0%+ | |||||||||
| n | n | n | n | n | n | ||||||||
| QBa***b***c** | # | 1.75 ± 1.72 | 0.03 ± 0.18 | 0.13 ± 0.34 | 0.69 ± 0.86 | 0.63 ± 0.91 | 5 | 0.28 ± 0.52 | 1 | ||||
| min | 30.3 ± 14.65 | 13 | – | — | 53.88 ± 28.50 | 6 | 28.53 ± 19.03 | 30.33 | |||||
| WRa***b***c* | # | 2.59 ± 2.28 | 0.38 ± 0.71 | 1 | 0.81 ± 0.93 | 0.66 ± 0.94 | 0.06 ± 0.25 | 0.69 ± 0.86 | 4 | ||||
| min | 25.68 ± 24.18 | 19 | 47.61 | 29.44 ± 13.47 | 7 | 35.39 ± 25.56 | 5 | — | 39.42 ± 23.34 | ||||
| DBa***b***c* | # | 2.75 ± 2.33 | 0.25 ± 0.67 | 2 | 1.03 ± 1.20 | 0.88 ± 1.10 | 7 | 0.25 ± 0.44 | 0.34 ± 0.70 | 2 | |||
| min | 24.69 ± 21.53 | 19 | 16.29 ± 23.02 | 37.78 ± 30.51 | 8 | 48.61 ± 38.67 | — | 66.68 ± 0.13 | |||||
| LBa***b* | # | 8.91 ± 3.49 | 0.47 ± 0.72 | 4 | 5.47 ± 2.76 | 2.34 ± 1.52 | 0.53 ± 0.76 | 5 | 0.09 ± 0.30 | ||||
| min | 13.16 ± 7.19 | 31 | 64.69 ± 34.08 | 21.21 ± 22.42 | 31 | 29.82 ± 18.31 | 22 | 43.94 ± 48.21 | – | ||||
| RBa***b** | # | 10.59 ± 4.05 | 1.34 ± 1.33 | 10 | 4.06 ± 2.54 | 4.13 ± 2.17 | 0.59 ± 0.71 | 4 | 0.47 ± 0.67 | 3 | |||
| min | 13.25 ± 6.90 | 32 | 37.47 ± 19.76 | 32.05 ± 27.82 | 31 | 25.78 ± 14.42 | 27 | 48.90 ± 34.04 | 61.67 ± 37.96 | ||||
| TE | # | 13.66 ± 6.31 | 0.22 ± 0.42 | 10.41 ± 5.47 | 2.00 ± 1.68 | 0.72 ± 0.92 | 6 | 0.31 ± 0.59 | 2 | ||||
| min | 10.37 ± 5.20 | 32 | – | 14.77 ± 12.41 | 31 | 36.37 ± 25.68 | 17 | 32.23 ± 11.43 | 33.74 ± 46.53 | ||||
| OL | # | 18.84 ± 8.33 | 0.22 ± 0.49 | 1 | 17.53 ± 8.06 | 0.97 ± 1.75 | 0.13 ± 0.34 | — | |||||
| min | 7.81 ± 4.61 | 32 | 19.31 | 8.30 ± 5.91 | 31 | 24.28 ± 14.76 | 7 | — | — | ||||
| DL | # | 21.19 ± 7.83 | 0.50 ± 0.67 | 3 | 19.81 ± 7.38 | 0.47 ± 0.76 | 0.41 ± 0.71 | 4 | — | ||||
| min | 6.29 ± 2.13 | 32 | 14.25 ± 9.22 | 6.73 ± 2.59 | 32 | 54.99 ± 29.29 | 3 | 80.69 ± 24.80 | — | ||||
Interval per magnitude level was calculated only for games in which >2 head impacts of the respective magnitude was experienced during the same game. The number of games per position for interval calculations is indicated with n values. Averages are presented (±SD). Significance is presented for differences in interval between positions.
*Significant at p < 0.05; **Significant at p < 0.005; ***Significant at p < 0.001.
asignificant difference to DL, bsignificant difference to OL, csignificant difference to TE.