Figure 5

(a) HR and (b) velocity of training sessions of sound and, later on, injured event horses. HR, heart rate (beats/min); V, velocity (m/s); subpopulation of ten event horses from national selection in preparation for 2011 European Championships; all conditional training sessions evaluated for HR and velocity; 5 horses became injured (n = 5) and 5 stayed sound (n = 5) during preparation for European Championship; mean and peak HR and V data of condition training sessions analyzed using general linear-model with injury as fixed-effect and horse as random-effect; injury considered effect modifier of data from conditional training sessions; and *, P < 0.001, significantly different compared to horses that stayed sound during preparation for European Championships.