Workload of horses on a water treadmill: effect of speed and water height on oxygen consumption and cardiorespiratory parameters

Table 3 Heart rate of Quarter Horses walking on a water treadmill

	Control (no water) (n = 15)	Mid cannon (n = 12)	Carpus (n = 15)	Stifle (n = 12)
1.11 m/s	55 (49–65)^a	59 (53–73)^a	61 (59–71)^bc	67 (63–74)^c
1.25 m/s	57 (50–63)^a	62 (54–73)^b	68 (62–76) ^bc	67 (66–77)^c
1.39 m/s	59 (51–64)^a	61 (56–74)^b	67 (63–75)^bc	69 (65–78)^c

Heart rate while working on a water treadmill at three water levels (mid cannon, carpus, stifle) and speeds (1.11, 1.25, 1.39 m/s) compared to control (no water – averaged over data collected on all 3 days). Median (IQR) shown in beats/min. Superscripts indicate differences between HR values at the same treadmill speed (rows). Values with the same superscript are not different from each other

ISSN: 1746-6148