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Fig. 4. Free response recovery times. The time it takes to reach individual
displacement maxima in the damped response for both the free-(dark grey) and
fixed-coxa (light gray) preparations. Bars represent the mean times ±
s.d. (N=10). The average swing duration for B. discoidalis
running at its preferred speed is 50–60 ms. The free-coxa preparation
recovers 88% of the perturbation by the second maxima and never has a third
maxima with less than 95% absorption. The fixed coxa recovers 74% of the
perturbation by the second maxima, 90% by the third, and never has a fourth
with less than 95% absorption. In all cases the time to each point is less for
the fixed-coxa legs (t-test, P<0.0001) and the time to
reach 99% absorption is less than the duration of the swing phase
(z-test, P<0.0001).
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