Research Article
Comparative Sensitivity Analysis of Muscle Activation Dynamics
Table 2
Parameters minimising the sum over five submaximal stimulation levels of squared differences between shifts in optimal CE length ( by Roszek et al. (1994) [27] in the third column of Table 2 in Kistemaker et al. [7]) at these levels predicted by the model with the isometric force and by experiments; simulated data represent a rat gastrocnemius muscle with an optimal CE length mm [26]; start value of was L/mol; the exponents of the bell-shaped force-length relations were fixed according to Mörl et al. [25] (, ); the corresponding width values in the ascending and descending branch were assumed to be equal: ; van Soest and Bobbert [9] and Kistemaker et al. [7] used a parabola for ; for all other model parameters see Sections 7.3 and 2; optimisation was done by (Nelder-Mead algorithm) in MATLAB with error tolerances of ; error is the square root of the above-mentioned sum divided by five; corresponding error value given in Table 2 in Kistemaker et al. [7] was 0.23 mm.
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