Fig. 3From: Exercise induced hemoconcentration following spleen contraction in subjects with COPDMean (IQR) hemoglobin concentration (Hb) and spleen volume after 10 min rest and immediately after 6 min walking (6MWT) in hypoxic subjects (baseline SpO2 < 90 %) and non-hypoxic subjects (baseline SpO2 > 90 %). *** indicates P < 0.001for Hb values and † P < 0.01 for spleen volume valuesBack to article page