Alterations in Red Blood Cells and Plasma Properties after Acute Single Bout of Exercise

Table 1

Effect of physical exercise on lactate, haemoglobin concentration as well as haematocrit, and delta plasma volume (ΔPV) before, after, and 1 hour after exercise.

Parameter	Preexercise; 𝑥 ± S.D	Postexercise; 𝑥 ± S.D	Recovery (1 h); 𝑥 ± S.D
Lactate (mmol/L)	2.47±0.78	11.19±1.78^∗	3.33±0.80^#
Haemoglobin (g/dL)	15.44±0.87	16.75±0.78^∗∗	15.24±0.87^#
Haematocrit (%)	45.56±2.22	49.72±2.40^∗∗	44.90±2.46^#
ΔPV (%)		−14.47±3.95	3.02±4.19

∗Significant difference between preexercise and postexercise (𝑃<0.0002); **preexercise and postexercise (𝑃<0.0005); ^#significant difference between post-exercise and 1 h recovery (𝑃<0.0002).