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. 2023 Nov 20;5:1230202. doi: 10.3389/fspor.2023.1230202

Table 3.

Peak linear acceleration and peak rotational acceleration for VHIs by game scenario, direction of contact, and the intent of the tackler.

n Median (g) 95% CI Median (rad/s2) 95% CI
Game specific scenario
Primary Carrier 88 22.9 15–34.3 1,652 1,200.3–2,845.5
Secondary Carrier 25 19.4 16.7–24.4 1,262 875–2,493
Primary Tackler 188 20.6 14.4–32.1 1,724 1,199.8–2,764.8
Secondary Tackler 77 23.8 16.9–40.7 1,914 1,204–3,045
Scrum 2 18 15.5–20.5 901 857–945
Ruck 205 21.4 16.1–33.6 1,604 1,113–2,749
Maul 55 25.7 16.2–34.6 1,648 1,244.5–2,548
Other 15 20.3 18.1–30.9 1,347 1,057.5–2,958
Direction of contact
Side 154 21.1 14.9–36.7 1,752 1,199.3–2,963.8
Angle 186 23.7 16.2–32.8 1,697.5 1,191.3–2,759
Front 200 20.9 15.4–33.7 1,761 1,175.5–2,772.5
Above 52 23.8 16.1–38.3 1,566 1,012.3–2,277
Back 63 22.6 14.9–33.4 1,524 1,023.5–2,340
Intent of tackler (primary or secondary)
Active Tackle 158 21.6 15.8–35.8 1,636 1,200.3–2,870
Passive Tackle 131 21.5 15.2–33.8 1,759 1,147–2,755.0
Wrap Tackle 58 20.4 14.3–31.8 1,860 1,246.8–2,968.8

CI, confidence interval; rad/s2, radians per second squared.