Fig. 2. Relationships of relative stride length (RSL) and duty factor (DF) to body
mass (Mb) in horses trotting at three different Froude
numbers (Fr). Allometric equations describing the data are shown (scaling
exponents given ± 95% confidence intervals) and are indicated by the
solid lines. The scaling exponents were not significantly different from 0,
indicating that RSL and DF are independent of body mass in horses trotting at
equal Froude number.