Journal of Human Kinetics · 5 authors, 4 centres
This summary was generated by AI from a single paper. It has not been reviewed by a clinician and is not clinical advice. Verify against the source before acting on it.
Ten Olympic rowers underwent paired laboratory testing across a 34% reduction in training volume. Changes in plasma volume and blood volume, but not total hemoglobin mass or hemoglobin concentration, were significantly correlated with changes in maximal exercise capacity.
Ten Olympic rowers followed the same training program and were tested in the competitive phase and the general preparation phase, separated by a 34% reduction in training volume. A graded exercise test on a rowing ergometer and blood measurements of hemoglobin concentration, total hemoglobin mass, plasma volume, and blood volume were performed at both time points. Relative maximal power decreased by 4.0% (p = 0.028), accompanied by decreases in lactate concentration (p = 0.005) and maximal heart rate (p = 0.017). Absolute and relative plasma volume also decreased (p = 0.017 and p = 0.005, respectively). Changes in plasma volume and blood volume were significantly correlated with changes in maximal power (rS = 0.842, p = 0.002 and rS = 0.818, p = 0.004), whereas changes in total hemoglobin mass and hemoglobin concentration were not.
