Table 4.

Pulmonary blood flow distribution in horses (rest vs. exercise)

Axis Rest, Treadmill Exercise Difference, Exercise − Rest P
Slope of flow vs. spatial dimension, % RPBF/cm
y −0.79 ± 0.580.62 ± 0.77 1.41 ± 0.56 0.0001
y−1.31 ± 0.79 0.66 ± 0.821.84 ± 0.41 0.0004
z −0.12 ± 0.48 −0.34 ± 0.30−0.22 ± 0.55 0.9
Center of flow, cm
x 30.9 ± 2.7 30.9 ± 2.8 0.0 ± 0.20.7
y 25.2 ± 1.0 25.9 ± 0.70.7 ± 0.3 0.0001
z 41.2 ± 5.82 41.1 ± 6.23−0.1 ± 0.6 0.7
Heterogeneity of flow (CV, %)
25.6 ± 4.7 23.5 ± 4.1−2.1 ± 8.0 0.8
  • Values are means ± SD; n = 5 horses.