Fig. 2. Model simulations of the relationship between architectural gear ratio
(AGR=
x/
f) and initial muscle fiber angle
(
) for a fiber shortening of 10% (
f=0.1). The
AGR is shown for the four bulging conditions defined in the text. These
conditions are part of a continuum of bulging conditions. The AGR increases
most rapidly when all of the bulging is in the y (dorsoventral)
direction (
z=1) and progressively less rapidly with less
dorsoventral bulging.