Fig. 5.
Effect of speed (m s–1) on fascicle strain (ΔI/Io) of the TrLAT (left) and TrLONG (right), (A) in yield phase, (B) in propulsive phase and (C) over stance phase. Walks are in green, trots in yellow and gallops in red. Each individual is denoted by a different symbol; values are means and s.e.m. Regression lines, r2 values and P values are fitted to the entire data set, and P values for speed as a covariate for all gaits are given in Table 2. Stretch magnitude in the TrLAT increased with speed but no other trends were found among individuals. Shortening magnitude in the TrLONG increased with speed during yield phase and decreased with speed during propulsive phase. Over stance phase three individuals showed significant (P<0.05) increases in shortening magnitude, whereas one individual showed significant (P<0.05) decreases.