TABLE 2.

Risk Weighted Cumulative Exposure (RWE) equations, where a_L is the measured peak linear acceleration, a_R is the measured peak rotational acceleration, and n_hits is the number of head impacts in a season for a given player.

Risk function(s)	Equation
Pellman, Linear	${\text{RWE}}_{\text{Pellman},\text{Linear}}={\sum }_{\mathit{i}=1}^{{\mathit{n}}_{\text{hits}}}\mathit{R}{({\mathit{a}}_{\mathit{L}})}_{\mathit{i}}$
Rotational	${\text{RWE}}_{\text{Rotational}}={\sum }_{\mathit{i}=1}^{{\mathit{n}}_{\text{hits}}}\mathit{R}{({\mathit{a}}_{\mathrm{R}})}_{\mathit{i}}$
Combined Probability	${\text{RWE}}_{\text{CP}}={\sum }_{\mathit{i}=1}^{{\mathit{n}}_{\text{hits}}}\text{CP}{({\mathit{a}}_{\mathrm{L}},{\mathit{a}}_{\mathrm{R}})}_{\mathit{i}}$