Table 1. Impacts to the head greater than 10g in youth Australian Football players for total impacts recorded, injured players and non-injured players by resultant peak and linear and rotational accelerations, head impact telemetry severity profile, risk weighted exposure combined (linear and rotational) probability for number of impacts recorded, impact duration and impact magnitude. Data are presented as mean (± standard deviation) and median [25th to 75th interquartile range].
|
n (%) |
Impact to the head |
Impact Duration (ms) |
Peak Linear Acceleration (PLA(g)) |
Peak Rotational Acceleration (PRA(deg/s2)) |
Head Impact Telemetry severity profile (HITSP) |
Risk Weighted Exposure combined probability (RWECP) |
| Per Match |
Per-player per match |
| Mean ±SD |
Mean ±SD |
Mean ±SD |
Median [IQR] |
95% |
Median [IQR] |
95% |
Median [IQR] |
95% |
Median [IQR] |
95% |
| Total |
453(100) |
41±30 |
5.3 ±4.8 |
10.0 ±7.7 |
15.2 [11.8-3.6] |
45.8 |
183,152[104,307-288,828] |
594,272 |
15.1 [12.4-21.6] |
46.1 |
.0012 [.0003-.0083] |
.71 |
| Injured |
26 (5.7)b |
3.8 ±2.9 |
3.8 ±2.9 |
9.3±6.7b |
13.5 [12.0-8.4]b |
49.9 |
164,851 [123,175-226,032] |
519,593 |
13.8 [11.6-17.5] |
58.6 |
.0013 [.0006-.0053] |
.19 |
| Non-Injured |
427 (94.3)a |
39 ±29 |
5.1 ±4.3 |
10.1±7.8a |
15.4 [11.7-23.7]a |
45.8 |
182,613[98,260-293,131] |
612,939 |
15.1 [12.3-21.9] |
47.0 |
.0012 [.0003-.0093] |
.75 |
SD = Standard Deviation; ms = milliseconds; IQR = interquartile [25
th-75
th] percentile; 95
th = 95
th percentile; Significant difference (p < 0.05) than (a) = Injured; (b) = Non-Injured
