Heart rate variability, training variation and performance in elite swimmers.

@article{Atlaoui2007HeartRV,
  title={Heart rate variability, training variation and performance in elite swimmers.},
  author={Djamila Atlaoui and Vincent Pichot and Lucien Lacoste and F. Barale and J R Lacour and Jean-Claude Chatard},
  journal={International journal of sports medicine},
  year={2007},
  volume={28 5},
  pages={394-400}
}
The aim of the present study was to investigate the relationships between heart rate variability (HRV) changes and both training variations and performances in elite swimmers. A secondary purpose was to measure catecholamine urinary excretion in elite swimmers to validate the HRV indices of sympathetic activity during training. Thirteen swimmers (4 females and 9 males) were tested before and after 4 weeks of intense training (IT) and 3 weeks of reduced training (RT). At the end of each period… CONTINUE READING
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