Fig. 2From: Exercise induced hemoconcentration following spleen contraction in subjects with COPDMean (IQR) hemoglobin concentration (Hb) after 10 min rest, after 6 min walking and after 10 min recovery in 24 subjects. P < 0.001 is indicated with *** and P < 0.01 with ** compared with values obtained after 10 min restBack to article page