Fig. 5. Stride data (mean ± s.e.m. as shading, N=6) of changes in craniocaudal kinetic (KE_cc) energy during level (blue broken line) and incline (red solid line) galloping at a mean speed of (A) 10 m s^–1 (n level=56 and n incline=60) and (B) 12 m s^–1 (n level=60 and n incline=28). Presented data are averages of all strides from all horses within the speed range. For illustrative purposes the minimum craniocaudal kinetic energy has been subtracted from external mechanical energy. Estimated aerial phase (vertical grey bar); stance phases of individual feet are presented for illustrative purposes as black bars in the lower panels (LF=lead fore; NLF=non-lead fore; LH=non-lead hind; NLH=non-lead hind).