Acute effects of cold water immersion on cardiovascular and autonomic responses

Autores/as

  • Gabriel Costa e Silva Doctoral Program in Health Sciences, ABC Medical School, ABC Foundation, Brazil. Group of Studies in Sciences of the Human Movement, Pedro II College, Brazil.
  • Rodrigo Rodrigues da Conceição Doctoral Program in Clinical Endocrinology, Federal University of São Paulo, Brazil
  • Carlos Vinicius Herdy Department of Physical Education, Estácio de Sá University, Rio de Janeiro, Brazil.
  • Anderson Silveira Laboratory of Physiology and Human Performance, Federal Rural University of Rio de Janeiro, Brazil.
  • Fabrízio Di Masi Laboratory of Physiology and Human Performance, Federal Rural University of Rio de Janeiro, Brazil. Human Motricity Bioscience Laboratory, LABIMH, Federal University of State of Rio de Janeiro, Brazil.

DOI:

https://doi.org/10.21134/riaa.v3i5.418

Palabras clave:

Heart rate variability, water activities, autonomic nervous system.

Resumen

Background: Immersion has been used for many years for therapeutic purposes, but more recently the cardiovascular and authonomic effects appear as an important change in the organism during immersion in the aquatic environment.

Objectives: The aim of this study was to investigate the acute effect of water immersion (22.6 °C) on heart rate, heart rate variability, body temperature, oxygen saturation, diastolic blood pressure and systolic blood pressure in young apparently healthy men.

Method: Nine apparently healthy males were randomly allocated to an experimental situation (SE) and one control (SC). The SE subjects had the variables measured after the 10 minutes immersion. The subject of the SC remained 10 minutes at rest in the terrestrial environment. After 48h, the procedures were performed the reverse manner to perform balanced input.

Results: After 10 minutes of immersion in water was observed reduction in the values of heart rate, significant increases on the RR intervals. The values of RMSSD (ms) increased after immersion, as shown pNN50 (%) and HF index increased (p = 0.009). The ratio (LF / HF) decreased after immersion. Significant differences when comparing the SBP were observed.

Conclusions: Thus, is concluded that the immersion in water (22.6º C) increases vagal activity and reduces modulation of the sympathetic branch of the autonomic nervous system.

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Publicado

2019-01-31

Cómo citar

Costa e Silva, G., Rodrigues da Conceição, R., Herdy, C. V., Silveira, A., & Di Masi, F. (2019). Acute effects of cold water immersion on cardiovascular and autonomic responses. Revista De Investigación En Actividades Acuáticas, 3(5), 8-13. https://doi.org/10.21134/riaa.v3i5.418