Fig. 8.

(A,B) Estimated parameters for the GRp (A) and BFp (B) models for each animal. Parameter values estimated by the restrained and the released method are shown by empty and filled symbols, respectively. The first three parameters are the position of the muscle origin represented by X, Y, Z coordinates and last three are the muscle insertion represented by U, V, W coordinates (coordinates are defined in Fig. 1). (C,D) The force–length relationships of the GRp (C) and the BFp (D) estimated by the model defined in Eqn 1. Lines show the parameterized force–length function and each symbol shows a point on the curve where the force was actually evaluated.