Impacts | Resultant Linear Acceleration (g) | Resultant Rotational Acceleration
(rad/s2) | ||||||||||
Number impacts recorded | Average per match competition
season | Average per player Mean ±SD | duration | Mean ±SD | Median [IQR] | 95% | Total Frequency Impact burdena | Mean ±SD | Median [IQR] | 95% | Total Frequency Impact burdena | |
(ms) | ||||||||||||
Mean ±SD | Mean ±SD | |||||||||||
Player Position1 | 18,877 | 1,242 ±520 | 91 ±45 | 9.3 ±1.4 | 21 ±14 | 17 [13-23] | 49 | 25,947 ±10,531 | 3,107 ±3,002 | 2,111 [1,211-3,869] | 9,399 | 3,827,791 ±1,537,960 |
Forwards2 | 11,249 | 1,406 ±583 | 109 ±52 | 10.0 ±1.3 | 22 ±14 | 18 [13-24] | 49 | 30,170 ±11,453 | 3,136 ±3,102 | 2,145 [1,155-4,027] | 9,520 | 4,410,185 ±1,706,292 |
Backs3 | 7,628 | 1,055 ±397 | 71 ±26 | 8.5 ±0.9 | 20 ±14 | 16 [12-23] | 48 | 21,119 ±7,402 | 3,065 ±2,845 | 2,142 [1,272-3,646] | 9,210 | 3,162,198 ±1,073,926 |
Per player4 | 18,877 | 932 ±623 | 82 ±69 | 9.2 ±1.4 | 21 ±2 | 16 [14-19] | 49 | 19,459 ±12,891 | 3,230 ±2,988 | 2,299 [1,933-2,546] | 9,547 | 2,870,843 ±1,853,473 |
Impacts | Resultant Linear Acceleration (g) | Resultant Rotational Acceleration
(rad/s2) | |||||||||
Total | Average per player per match Mean ±SD | Duration (ms) Mean ±SD | Mean ±SD | Median [IQR] | 95% | Total Impact Frequency Burdenb | Mean ±SD | Median [IQR] | 95% | Total Impact Frequency Burdenb | |
L-H Prop | 1,298 | 98 ±47 | 7.5 ±5.0 | 20 ±15 | 15 [12-23] | 50 | 25,928 | 3,100 ±3,033 | 2,014 [1,306-3,371] | 9,858 | 4,023,287 |
Hooker | 2,014 | 129 ±105 | 9.5 ±7.3 | 23 ±15 | 18 [13-28] | 52 | 45,883 | 3,562 ±3,029 | 2,597 [1,388-4,776] | 9,436 | 7,174,636 |
T-H Prop | 1,227 | 80 ±62 | 10.3 ±8.1 | 23 ±16 | 17 [13-26] | 53 | 27,743 | 3,684 ±3,329 | 2,527 [1,495-4,608] | 10,936 | 4,520,165 |
Left Lock | 992 | 90 ±76 | 9.6 ±7.8 | 23 ±15 | 18 [13-27] | 52 | 22,491 | 3,592 ±3,248 | 2,564 [1,349-4,678] | 10,200 | 3,563,050 |
Right Lock | 522 | 38 ±11 | 10.0 ±7.5 | 23 ±14 | 18 [13-27] | 52 | 11,769 | 3,466 ±3,193 | 2,353 [1,552-4,047 | 10,252 | 1,809,080 |
B-S Flanker | 2,339 | 166 ±56 | 12.3 ±8.7 | 18 ±10 | 18 [14-19] | 30 | 42,881 | 1,439 ±2,255 | 758 [151-1,702] | 5,555 | 3,365,730 |
O-S Flanker | 1,696 | 119 ±100 | 10.5 ±7.3 | 23 ±15 | 18 [14-26] | 54 | 38,615 | 3,780 ±3,104 | 2,762 [1,797-4,699] | 10,069 | 6,410,623 |
No. Eight | 1,161 | 102 ±58 | 10.2 ±7.6 | 22 ±15 | 17 [13-26] | 51 | 26,049 | 3,803 ±3,124 | 2,793 [1,714-4796] | 10,005 | 4,414,911 |
Halfback | 522 | 43 ±28 | 8.36 ±7.9 | 20 ±13 | 14 [11-23] | 49 | 10,305 | 3,160 ±3,142 | 1,755 [1,044-4,294] | 10,222 | 1,649,328 |
First 5/8 | 594 | 39 ±20 | 8.7 ±7.1 | 21 ±15 | 15 [11-25] | 52 | 12,429 | 3,454 ±3,557 | 2,142 [1,178-4,694] | 10,640 | 2,051,771 |
Left Wing | 1,151 | 67 ±34 | 10.2 ±8.5 | 21 ±16 | 16 [12-23] | 51 | 24,478 | 2,525 ±2,368 | 1,747 [1,161-2,953] | 7,166 | 2,905,787 |
Second 5/8 | 1,294 | 95 ±60 | 8.3 ±7.9 | 19 ±13 | 14 [12-20] | 45 | 27,294 | 3,053 ±2,943 | 2,089 [1,213-3,595] | 9,423 | 4,444,897 |
Centre | 1,270 | 55 ±30 | 8.8 ±7.2 | 22 ±17 | 16 [12-24] | 55 | 18,686 | 3,414 ±3,188 | 2,356 [1,329-4,111] | 10,399 | 2,956,649 |
Right Wing | 1,460 | 83 ±64 | 7.1 ±6.4 | 18 ±12 | 14 [12-19] | 39 | 25,929 | 2,714 ±2,584 | 1,906 [1,188-3,220] | 7,917 | 3,963,060 |
Fullback | 1,337 | 87 ±55 | 8.2 ±6.4 | 21 ±13 | 19 [13-25] | 43 | 28,717 | 3,114 ±2,382 | 2,466 [1,713-3,579] | 8,301 | 4,163,892 |