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. 2021 Apr 9;18(8):3944. doi: 10.3390/ijerph18083944

Table 3.

Changes in hematological parameters before versus after training by group.

Measures NTG (n = 10) HTG (n = 10) η2 (p) Value
Before After Mean Change
(95% CI)
Before After Mean Change
(95% CI)
Time Group Interaction
RBC (×106/µL) 4.70 ± 0.49 4.57 ± 0.50 −0.14 *
(−0.22, −0.05)
5.16 ± 0.44 4.84 ± 0.43 −0.32 *
(−0.39, −0.24)
0.820
(0.000) †
0.144
(0.099)
0.417
(0.002) †
Hb (g/dL) 14.79 ± 1.43 14.41 ± 1.46 −0.38 *
(−0.60, −0.15)
15.51 ± 1.21 14.64 ± 1.31 −0.87 *
(−1.11, −0.63)
0.806
(0.000) †
0.033
(0.813)
0.397
(0.003)†
Hct (%) 44.35 ± 3.41 43.95 ± 3.73 −0.40
(−1.29, 0.49)
46.40 ± 3.19 43.99 ± 3.46 −2.41 *
(−3.12, −1.70)
0.642
(0.000) †
0.025
(0.502)
0.479
(0.001)†
EPO (mU/mL) 9.11 ± 2.22 10.16 ± 3.47 2.30
(0.87, 3.72)
10.16 ± 3.47 15.25 ± 2.00 5.09
(2.16, 8.01)
0.593
(0.000) †
0.271
(0.019)†
0.173
(0.068)
MCV (μm2) 94.58 ± 3.52 96.54 ± 3.40 1.95
(1.59, 2.31)
90.15 ± 2.90 91.03 ± 2.16 0.88
(−0.73, 2.49)
0.456
(0.001) †
0.444
(0.001)†
0.107
(0.159)
MCH (μg) 31.49 ± 1.17 31.61 ± 1.04 0.12
(−0.11, 0.36)
30.14 ± 1.32 30.29 ± 1.30 0.16
(−0.14, 0.46)
0.135
(0.111)
0.258
(0.022) †
0.003
(0.823)
MCHC (g/dL) 33.30 ± 0.84 32.75 ± 0.63 −0.55
(−0.84, −0.26)
33.42 ± 0.91 33.27 ± 0.96 −0.15
(−0.63, 0.33)
0.310
(0.011) †
0.042
(0.395)
0.128
(0.122)

Values are expressed as means ± standard deviations. CI, confidence interval; EPO, erythropoietin; Hb, hemoglobin; Hct, hematocrit; HTG, hypoxic training group; MCV, mean corpuscular volume; MCH, mean corpuscular hemoglobin; MCHC, mean corpuscular hemoglobin concentration; NTG, normoxic training group; RBC, red blood cells. Significant interaction or main effect: † p < 0.05; Significant difference before and after training: * p < 0.05.