Fig. 4
Distribution of residuals across participants presented according to the velocity condition. Residuals were computed as the difference between the force output during lower limb push-off in the 6 resistive conditions and the modeled force at the same velocity using the linear model (black plus signs), Poly2 (Black diamonds), F&M’sEq (black circles) and Hill’sEq (black crosses). SD of residuals for the linear model, Poly2, Hill’sEq and F&M’sEq are represented as dashed, dotted and full grey lines, and dashed black lines, respectively. Poly2, the second-order polynomial function; Hill’sEq, Hill’s equation; F&M’sEq, Fenn and Marsh’s equation