Table 2

 Head and neck responses

Peak linear accel.(m/s2)Peak angular accel.(rad/s2)Peak HIP(kW)Neck shear(N)Neck axial(N)Ball exit velocity(m/s)
Accel., acceleration; HIP, Head Impact Power (index).
Baseline156−3741.44362−57010.63
Muscle at 125%155−4481.54520−92710.33
Muscle at 150%145−5541.52648−124910.67
Head/torso aligned140−3600.92388−5389.76