Fig. 10. Stretching (positive) and shortening (negative) strains in the vastus during stance from proximal, middle and distal fascicles during walking (W; black), trotting (T; gray) and galloping (G; white). Although strains tend to be highest in the middle region, this pattern was not present in all individuals, and differences between sites were not significant. Data shown are means from four individuals. Error bars represent standard errors.