Fig. 3. Stance duration as a function of speed. Values are means + s.e.m. for hindlimbs and means – s.e.m. for forelimbs (for clarity; N=6 throughout) of individual horse mean data (indicated by different symbols) during level (0–2%) and incline (8–12%) galloping for the six horses. Quadratic lines of best fit (P<0.001) are shown. These were estimated for the population using mean data. Coefficients: forelimb level b₀=289.1, b₁=–17.59, b₂=0.34, r²=0.75; forelimb incline b₀=377.7, b₁=–33.58, b₂=1.06, r²=0.915; hindlimb level b₀=392.0.1, b₁=–34.32, b₂=1.06, r²=0.75; hindlimb incline b₀=377.2, b₁=–32.22, b₂=0.99, r²=0.82.