Effects of Two Fatigue Protocols on Impact Forces and Lower Extremity Kinematics during Drop Landings: Implications for Noncontact Anterior Cruciate Ligament Injury

Table 2

Comparison of the peak vGRF (F_Zmax), the peak loading rate (G_max), and the occurrence times of F_Zmax and G_max during landings between pre- and postfatigue test within different fatigue-induced protocols (R-FP and SV-FP).

Variables	R-FP		SV-FP
	Prefatigue	Postfatigue	Prefatigue	Postfatigue
FZmax/BW	5.8 ± 0.9	5.8 ± 1.0	6.0 ± 0.8	5.9 ± 0.9
tF/ms	29.0 ± 9.4	26.3 ± 11.0	24.4 ± 11.5	25.5 ± 10.2
Gmax/(BW/s)	1037.6 ± 225.7	1053.7 ± 209.0	1086.4 ± 253.4	1076.7 ± 200.1
tG/ms	25.8 ± 9.6	23.2 ± 11.0	21.4 ± 11.7	22.6 ± 10.4