Table 1.

Isokinetic strength, reactive strength and leg stiffness characteristics before and after the soccer specific fatigue protocol.

Variable	Pre-fatigue	Post-fatigue
	Mean ± SD	Mean ± SD	% Change
Peak torque (N·m)
Q Con 1.05 DL	211.87 ± 45.54	204.72 ± 49.11	-3.3
Q Con 3.14 DL	179.12 ± 30.12	177.73 ± 35.17	-0.3
Q Con 1.05 NL	197.04 ± 44.93	193.03 ± 41.82	-2.0
Q Con 3.14 NL	165.94 ± 34.12	168.24 ± 38.71	2.0
H Con 1.05 DL	144.14 ± 22.39	142.77 ± 23.60	-0.2
H Con 3.14 DL	170.20 ± 27.30	163.88 ± 26.15	-3.6
H Con 1.05 NL	138.53 ± 31.79	133.20 ± 29.80	-3.5
H Con 3.14 NL	160.64 ± 30.68	155.98 ± 24.60	-2.5
H Ecc 1.05 DL	157.37 ± 34.27	149.43 ± 30.00	-4.8
H Ecc 3.14 DL	187.66 ± 26.56	181.76 ± 24.22	-2.8
H Ecc 1.05 NL	149.22 ± 35.13	134.84 ± 28.26	-9.5
H Ecc 3.14 NL	181.22 ± 25.63	177.95 ± 25.21	-5.7
H/QFUNC
1.05 DL	0.75 ± 0.11	0.75 ± 0.17	0
3.14 DL	1.05 ± 0.11	1.04 ± 0.12	-4
1.05 NL	0.75 ± 0.11	0.75 ± 0.11	0
3.14 NL	1.05 ± 0.18	1.10 ± 0.18	10
RSI	0.40 ± 0.07	0.43 ± 0.06∗∗	7.5
ALS	27.17 ± 4.41	24.81 ± 4.12∗∗	-8.1
RLS	34.89 ± 5.54	31.81 ± 4.63∗∗	-6.4

SD – standard deviation; Q – quadriceps; H – hamstrings; Con – concentric action;

Ecc – eccentric action; DL – dominant leg; NL – non-dominant leg;

H/Q_FUNC – isokinetic hamstrings eccentric-to-quadriceps concentric functional ratio;

1.05, 3.14 – angular velocities; RSI – reactive strength index; ALS – absolute leg stiffness;

RLS – relative leg stiffness; ^∗p < 0.05;

^∗∗p < 0.01.