Skip to main content

Table 2 Values of serum OS biomarkers in horses pre- and post-races by distance and difficulty

From: Effect of prolonged submaximal exercise on serum oxidative stress biomarkers (d-ROMs, MDA, BAP) and oxidative stress index in endurance horses

Parameter (unit) Distance Race difficulty
40 km 80 km Easy Demanding
d-ROMs (U.Carr.) Pre-race 164.8 ± 7.6 168.7 ± 9.9 166.2 ± 6.8 166.2 ± 8.2
Post-race 173.8 ± 8.6 174.2 ± 11.3 171.9 ± 7.8 172.3 ± 8.4
P 0.002 0.2 0.04 0.03
Pa 0.5 0.9
BAP (μmol/L) Pre-race 2610.9 ± 33.2 2533.1 ± 30.5 2612.7 ± 32.2 2541.9 ± 32.2
Post-race 2820.4 ± 28.2 2840.4 ± 31.4 2817.5 ± 28.8 2840.5 ± 22.8
P <  0.001 <  0.001 <  0.001 <  0.001
Pa 0.01 0.02
MDA (μmol/L) Pre-race 5.1 ± 0.2 4.5 ± 0.1 4.7 ± 0.1 5.1 ± 0.3
Post-race 5.3 ± 0.2 4.7 ± 0.2 5.1 ± 0.2 5.1 ± 0.3
P 0.1 0.02 0.003 0.7
Pa 0.9 0.1
OSI (arbitrary units) Pre-race 6.3 ± 0.3 6.7 ± 0.4 6.4 ± 0.3 6.6 ± 0.3
Post-race 6.1 ± 0.3 6.2 ± 0.4 6.1 ± 0.3 6.1 ± 0.3
P 0.004 <  0.001 0.005 < 0.001
Pa 0.01 0.1
  1. d-ROMs determination of reactive oxidative metabolites, BAP biological antioxidant potential, MDA malondialdehyde, OSI oxidative stress index
  2. P-significance for the differences within each category division (e.g. change in values at 40 km and at 80 km separately)
  3. Pa-significance for the difference between the two categories (e.g. change in values at 40 km vs. at 80 km)