Table 2.
Impact Characteristics of 3- and 4-Year High School Football Athletes
| Practices | Games | Season totals | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Subject ID | Position | No. of sessions | No. of impacts | Mean | Standard deviation | Cumulative | No. of sessions | No. of impacts | Mean | Standard deviation | Cumulative | No. of sessions | No. of impacts | Mean | Standard deviation | Cumulative | ||
| Linear resultant acceleration (g) | 3-Year career | 27 | QB | 111 | 741 | 20.7 | 12.8 | 15,354.7 | 35 | 948 | 26.8 | 17.2 | 25,384.1 | 146 | 1689 | 24.1 | 15.7 | 40,738.7 |
| 37 | WR | 121 | 861 | 23.7 | 14.3 | 20,395.8 | 35 | 1326 | 28.8 | 21.8 | 38,130.5 | 156 | 2187 | 26.8 | 19.3 | 58,952.6 | ||
| 38 | WR | 81 | 532 | 24.0 | 15.5 | 12,755.8 | 27 | 354 | 26.3 | 16.7 | 9305.6 | 108 | 886 | 24.9 | 16.0 | 22,061.4 | ||
| 43 | LB | 82 | 1327 | 25.6 | 14.7 | 33,974.4 | 24 | 1383 | 28.6 | 18.5 | 39,574.1 | 106 | 2710 | 27.1 | 16.8 | 73,548.5 | ||
| 60 | LB | 127 | 1539 | 23.7 | 14.0 | 36,486.8 | 34 | 1532 | 26.9 | 16.4 | 41,194.0 | 161 | 3071 | 25.3 | 15.3 | 77,680.8 | ||
| 4-Year career | 34 | LB | 93 | 859 | 26.2 | 14.5 | 22,474.9 | 26 | 1203 | 28.6 | 18.4 | 34,429.2 | 119 | 2062 | 27.6 | 17.0 | 56,904.1 | |
| 35 | RB | 98 | 950 | 25.1 | 16.5 | 23,814.0 | 32 | 1383 | 29.6 | 20.5 | 40,998.6 | 130 | 2333 | 27.8 | 19.1 | 64,812.6 | ||
| Rotational resultant acceleration (rad/sec2) | 3-Year career | 27 | QB | 111 | 741 | 1097.5 | 949.6 | 813,271.7 | 35 | 948 | 1389.5 | 1195.6 | 1,533,540.4 | 146 | 1689 | 1389.5 | 1195.6 | 2,346,812.1 |
| 37 | WR | 121 | 861 | 1527.9 | 1089.0 | 1,315,507.7 | 35 | 1326 | 1847.5 | 1575.5 | 2,449,777.2 | 156 | 2187 | 1721.7 | 1412.6 | 3,793,249.2 | ||
| 38 | WR | 81 | 532 | 1617.9 | 1253.5 | 860,719.4 | 27 | 354 | 1786.1 | 1199.1 | 632,281.3 | 108 | 886 | 1685.1 | 1234.1 | 1,493,000.7 | ||
| 43 | LB | 82 | 1327 | 1657.5 | 1100.9 | 2,199,503.9 | 24 | 1383 | 1844.0 | 1405.8 | 2,550,190.9 | 106 | 2710 | 1752.7 | 1268.9 | 4,749,694.8 | ||
| 60 | LB | 127 | 1539 | 1662.5 | 1086.9 | 2,558,646.0 | 34 | 1532 | 1891.1 | 1329.8 | 2,897,197.5 | 161 | 3071 | 1776.6 | 1219.4 | 5,455,843.5 | ||
| 4-Year career | 34 | LB | 93 | 859 | 1704.1 | 1187.4 | 1,463,850.0 | 26 | 1203 | 1840.8 | 1410.0 | 2,214,430.3 | 119 | 2062 | 1783.8 | 1323.3 | 3,678,280.3 | |
| 35 | RB | 98 | 950 | 1515.4 | 1108.0 | 1,439,650.8 | 32 | 1383 | 1884.8 | 1439.0 | 2,606,650.2 | 130 | 2333 | 1734.4 | 1326.5 | 4,046,301.0 | ||
| HITsp | 3-Year career | 27 | QB | 111 | 741 | 12.5 | 5.2 | 9234.4 | 35 | 948 | 14.5 | 9.1 | 13,709.5 | 146 | 1689 | 13.6 | 7.7 | 22,943.9 |
| 37 | WR | 121 | 861 | 13.8 | 6.6 | 12,062.7 | 35 | 1326 | 16.2 | 12.6 | 21,517.0 | 156 | 2187 | 15.3 | 10.7 | 33,579.7 | ||
| 38 | WR | 81 | 532 | 15.0 | 7.7 | 7998.4 | 27 | 354 | 16.5 | 9.0 | 5833.9 | 108 | 886 | 15.6 | 8.3 | 13,832.3 | ||
| 43 | LB | 82 | 1327 | 15.0 | 7.8 | 20,184.3 | 24 | 1383 | 16.4 | 9.2 | 2272.1 | 106 | 2710 | 15.7 | 8.6 | 42,905.4 | ||
| 60 | LB | 127 | 1539 | 15.3 | 7.4 | 23,718.0 | 34 | 1532 | 17.2 | 9.2 | 26,306.7 | 161 | 3071 | 16.2 | 8.4 | 50,024.7 | ||
| 4-Year career | 34 | LB | 93 | 859 | 16.0 | 7.9 | 13,758.3 | 26 | 1203 | 17.2 | 9.9 | 20,644.4 | 119 | 2062 | 16.7 | 9.2 | 34,402.8 | |
| 35 | RB | 98 | 950 | 14.2 | 7.8 | 13,532.1 | 32 | 1383 | 16.1 | 10.3 | 22,297.0 | 130 | 2333 | 15.4 | 9.4 | 35,829.0 | ||
QB, quarterback; WR, wide receiver; LB, linebacker; RB, running back.