Table 3.  Changes in haemoglobin, haematocrit, plasma volume, oxidized, reduced and total glutathione in blood and red blood cells (RBCs). Values are means (±SD).

Parameter

Pre-COMP

Post-COMP

RECOV

Hgb (g·L-1)

  139.4 (8.5)

  137.9 (10.0)

  130.9 (7.1)*** ###

Hct  (%)

  42.3 (1.6)

  41.7 (2.3)

  40.1 (1.8)*###

Plasma volume change (%)

  -

   -2.6 (6.8)

  10.2 (5.1)

GSSG  (μM·L-1)

  89.5 (19.6)

  94.6 (21.1)

  99.3 (34.2)

GSH  (μM·L-1)

  1120 (129)

  1114 (145)

  1029 (153)*

tGSH  (μM·L-1)

  1209 (128)

  1209 (153)

  1129 (150)*

eGSSG  (μM·g-1 Hb)

  1.07 (0.26)

  0.96 (0.15)

  0.96 (0.25)

eGSH  (μM·g-1 Hb)

  10.6 (2.1)

  10.0 (1.9)

  11.4 (1.6)*

etGSH  (μM·g-1 Hb)

  11.5 (1.8)

  11.0 (1.9)

  9.6 (2.5)**
Note. Hgb − haemoglobin; Hct − haematocrit; GSSG − oxidized glutathione in blood; GSH − reduced glutathione in blood; tGSH − total glutathione in blood; eGSSG − oxidized glutathione in RBCs; eGSH − reduced glutathione in RBCs; etGSH − total glutathione in RBCs; pre-COMP − precompetition level; post-COMP − immediately after the competition; RECOV − 18-hour recovery period; * p < 0.05, ** p < 0.01, *** p < 0.001, different from pre-COMP. ###  p < 0.001, different from post-COMP.