Fig. 4. Force/velocity relationship for a single tentacle transverse muscle bundle
preparation (filled circles) and a single arm transverse muscle bundle
preparation (open circles). Force is expressed relative to the isometric force
of the preparation (mean of repeat twitches for the tentacle and repeat 100
ms, 50 Hz tetani for the arm). Velocity is expressed in L0
s-1, where L0 is the length of the preparation
at which peak isometric force is produced. The lines were fitted to the data
using Hill's single hyperbolic function (see text and
Table 1, tentacle preparation 6
and arm preparation 6).
