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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: Muscle Nerve. 2011 Apr;43(4):563–573. doi: 10.1002/mus.21981

Table 1.

Slopes of agonist (quadriceps) and antagonist (hamstrings) muscles during isometric force control testing

Angle Muscle β1 β0 R2 P-Value
90° VL 0.982 0.033 0.855 P < 0.001
RF 0.991 −2.075 0.842 P < 0.001
VM 1.041 −1.246 0.871 P < 0.001
MH 0.076 −0.002 0.356 P < 0.001
LH 0.160 −0.430 0.565 P < 0.001
30° VL 0.778 −2.138 0.862 P < 0.001
RF 0.657 −2.673 0.827 P < 0.001
VM 0.696 −2.926 0.810 P < 0.001
MH 0.050 −0.018 0.549 P < 0.001
LH 0.109 −0.490 0.666 P < 0.001

β1 Slope, β0 Intercept, R2 Coefficient of determination, VL: vastus lateralis, RF: rectus femoris, VM: vastus medialis, ST: semitendinosus, BFL: long head of the biceps femoris.