Fig. 2. Scatter plot showing speed against percentage incline for strides included
in the analysis. Points are coloured according the horse number. The shaded
areas represent the two incline categories that were used for the general
linear model (GLM) analysis: 0–2% incline category (classified as level,
A) and 8–12% incline category (classified as incline, B). NB Many of the
points represent multiple numbers of strides due to superimposition.