Fig. 6. (A) %congruity and (B) %recovery and of M. tuberculata crossing the force plates at a range of speeds. The considerable variability of values for both these descriptive statistics supports our observation that the patterns of vertical body movement were extremely variable from trial to trial, both on force plates and on the treadmill. A transition from an energetic walk to an energetic run with increased speed would be reflected by an increasing %congruity and decreasing %recovery, but neither regression has a slope significantly different from zero.