Effects of 24 h ultra-marathon on biochemical and hematological parameters

Table 2 Changes in Hb, Hct, red cell parameters and platelet count before and after the race

	Pre-race	0 h post-race	2 d post-race	9 d post-race
Red cell count (× 1012/L)	4.71 ± 0.25ce	4.71 ± 0.45	4.07 ± 0.27	4.42 ± 0.21
Hb (g/dL)	14.63 ± 0.91ce	14.58 ± 1.17	12.52 ± 0.86	13.81 ± 0.69
Hct (%)	42.34 ± 2.73ce	42.37 ± 3.82	37.33 ± 3.15	40.27 ± 1.84
Mean cell volume (fl)	89.91 ± 3.11e	90.05 ± 3.37	90.29 ± 3.50	91.15 ± 3.19
Mean cell Hb (pg)	31.09 ± 1.23	31.02 ± 1.44	30.90 ± 1.29	31.22 ± 1.34
Mean cell Hb
Concentration (g/dL)	34.59 ± 0.45e	34.44 ± 0.60	34.24 ± 0.47	34.25 ± 0.64
Red cell distribution width (%)	12.84 ± 0.60	12.94 ± 0.88	12.69 ± 0.57	12.80 ± 0.65
Platelet (× 109/L)	235.45 ± 47.27ace	248.91 ± 46.95	209.82 ± 58.28	280.27 ± 67.23

^aP < 0.05 vs statistically significant when pre-race compared with 0 h post-race.

^cP < 0.05 vs statistically significant when pre-race compared with 2 d post-race.

^eP < 0.05 vs statistically significant when pre-race compared with 9 d post-race.