Fig. 2
Three typical individual F–v relationships (left panels) drawn with the linear model (solid black lines), Poly2 (dashed black lines), F&M’sEq (dashed grey lines) and Hill’sEq (solid grey lines), and their resulting P–v relationship (right panels). Black points represent force, velocity and power data obtained from the six resistive conditions on the ergometer. The three individuals were chosen to represent typical examples of low (top panel; a/F0 = 2.70), moderate (middle panel; a/F0 = 1.57) and high (bottom panel; a/F0 = 0.53) curvature of the F–v relationship when using Hill’sEq. Poly2, the second-order polynomial function; Hill’sEq, Hill’s equation; F&M’sEq, Fenn and Marsh’s equation