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. 2023 Sep 7;54(2):517–530. doi: 10.1007/s40279-023-01923-z

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Fig. 2 — Snapshot of weekly rugby exposure per playing grade by a time exposure and b head acceleration event (HAE) exposure. A typical week was defined by one match (turquoise) and two trainings—T₁ (teal) and T₂ (grey). Prem Premier, U13 Under-13, U15 Under-15, U19 Under-19