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Table 2 Ventilatory parameters of Quarter Horses walking on a water treadmill

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

  

Control (no water)

Mid cannon

Carpus

Stifle

V̇O2

1.11 m/s

9.57 (6.86-11.88)

10.44 (8.09-15.96) ✝ (p = 0.005)

13.44 (10.53-15.05) *(p = 0.0002)

13.78 (11.64-14.85) * (p < 0.0001)

1.25 m/s

9.22 (7.01-10.85)

10.57 (9.96-14.55) *✝ (p = 0.002, p = 0.005)

13.35 (10.80-15.25) *(p < 0.0001)

14.60 (11.18-15.13) *(p < 0.0001)

1.39 m/s

8.93 (6.72-11.26)

10.72 (9.11-14.06) *✝ (p < 0.0001, p = 0.005)

14.73 (12.58-16.00) *(p < 0.0001)

16.70 (13.42-17.76) *(p < 0.0001)

RF

1.11 m/s

37.6 (28.3-46.6)

38.3 (30.9-61.9) ✝ (p < 0.0001)

51.9 (39.1-57.0) ✝ (p < 0.0001)

33.5 (22.6-43.3)

 

1.25 m/s

41.2 (28.4-54.1)

45.0 (37.1-73.6) ✝ (p < 0.0001)

51.7 (46.1-60.5) ✝ (p < 0.0001)

35.7 (20.8-41.7)

 

1.39 m/s

39.7 (28.6-52.5)

47.1 (40.9-76.1) ✝ (p < 0.0001)

49.0 (46.1-63.5) ✝ (p < 0.0001)

31.5 (21.6-42.9)

VT

1.11 m/s

3.8 (3.4-4.3)

4.2 (3.8-4.6) ✝ (p < 0.0001)

4.3 (3.8-4.7) ✝ (p < 0.0001)

5.1 (4.1-6.1) *(p < 0.0001)

 

1.25 m/s

3.9 (3.3-4.3)

4.4 (3.7-5.0) *✝ (p = 0.02, p < 0.0001)

4.6 (4.3-5.1) * ✝ (p = 0.007, p < 0.0001)

5.5 (4.6-6.1) *(p < 0.0001)

 

1.39 m/s

3.9 (3.4-4.2)

4.5 (3.9-4.8) ✝* (p < 0.0001, p < 0.0001)

5.0 (4.5-5.3) * ✝ (p < 0.0001, p < 0.0001)

6.0 (5.0-7.3) *(p < 0.0001)

VE

1.11 m/s

157.7 (109.5-198.8)

178.4 (125.5-289.6) ✝ (p = 0.004)

218.4 (154.7-265.7) * ✝ (p = 0.02, p < 0.0001)

169.3 (135.8-238.0)

1.25 m/s

152.1 (116.5-207.4)

193.9 (150.9-307.3) * ✝ (p = 0.001, p = 0.004)

242.2 (199.9-265.5)* ✝ (p = 0.0002, p < 0.0001)

180.4 (132.6-232.7) *(p = 0.04)

 

1.39 m/s

158.3 (124.0-219.2)

200.0 (184.3-312.1) * ✝(p < 0.0001, p = 0.004)

261.6 (216.2-290.8) * ✝ (p < 0.0001, p < 0.0001)

210.0 (159.4-233.0) * (p = 0.003)

TE/TI

1.11 m/s

0.9 (0.8-1.1)

0.8 (0.6-1.0)

0.8 (0.8-0.9)

0.9 (0.8-1.0)

 

1.25 m/s

0.9 (0.8-1.0)

0.8 (0.7-0.9)

0.8 (0.7-1.0)

0.8 (0.7-0.9)

 

1.39 m/s

0.8 (0.7-0.9)

0.7 (0.7-0.9)

0.8 (0.6-0.9)

0.8 (0.6-0.9)

  1. Ventilatory parameters (V̇O2 = oxygen consumption in ml/(kg.min), RF = respiratory frequency in breaths/min, VT = tidal volume in L, VE = minute ventilation in L/min, TE/TI = ratio of exhalation over inhalation periods) 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). Control values are averaged over the values collected pre- and post-water exercise each day (3 days). N = 14 (one horse’s data was unusable). Median (IQR) shown. Asterixes (*) denote values that are significantly different from control values; crosses (✝) denote values that are significantly different from stifle values
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BMC Veterinary Research

ISSN: 1746-6148

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