Table 1. Erythropoietic and hemolytic indicators before, during, and after bed rest
BDC2 (1 SEM)HDT10 (1 SEM)HDT21 (1 SEM)R1 (1 SEM)R28 (1 SEM)
Hematocrit (%)41.1 (0.4)44.0 (0.5)a42.5 (0.4)a39.2 (0.5)a40.5 (0.5)
Mean corpuscular volume (μm3)83.9 (0.4)b84.9 (0.2)b84.7 (0.5)b84.7 (0.5)a,b85.3 (0.5)a,b
Mean corpuscular hemoglobin (pg)28.9 (0.1)b29.0 (0.2)b29.0 (0.2)b29.0 (0.2)b29.2 (0.2)a
Mean corpuscular hemoglobin concentration (g/dL)34.1 (0.1)b34.2 (0.1)34.3 (0.1)a34.2 (0.1)a34.2 (0.1)a,b
Red cell distribution width (%)12.9 (0.2)13.3 (0.3)a13.3 (0.2)a13.2 (0.2)a12.4 (0.1)a
Haptoglobin (g/L)1.11 (0.14)1.06 (0.13)1.01 (0.10)0.94 (0.09)0.81 (0.07)a
Total bilirubin (mg/dL)0.85 (0.08)0.82 (0.08)0.78 (0.08)0.73 (0.08)0.79 (0.08)
Direct bilirubin (mg/dL)0.33 (0.03)0.32 (0.02)0.31 (0.02)0.30 (0.02)0.28 (0.02)
EPO (U/L)10.8 (0.9)10.0 (0.9)11.8 (1.1)14.5 (1.2)a,b14.6 (1.4)a,b
Ferritin (μg/L)54.8 (7.1)47.3 (6.4)46.3 (5.8)40.7 (5.3)a18.6 (2.2)a
C‐reactive protein (mg/L)0.22 (0.13)0.09 (0.04)0.19 (0.11)0.39 (0.12)0.10 (0.03)
  • a P < 0.05 compared to baseline data collection.

  • b P < 0.05 between campaign 1 and campaign 2.