Whole body immersion and hydromineral homeostasis: Effect of water temperature

Chantal Jimenez, Jacques Regnard, Claude Robinet, Laurent Mourot, Danielle Gomez-Merino, Mounir Chennaoui, Yves Jammes, Gilles Dumoulin, Anne Virginie Desruelle, Bruno Melin

Результат исследований: Материалы для журналаСтатья

16 Цитирования (Scopus)

Выдержка

This experiment was designed to assess the effects of prolonged whole body immersion (WBI) in thermoneutral and cold conditions on plasma volume and hydromineral homeostasis.10 navy "combat swimmers" performed three static 6-h immersions at 34°C (T34), 18°C (T18) and 10°C (T10). Rectal temperature, plasma volume (PV) changes, plasma proteins, plasma and urine ions, plasma osmolality, renin, aldosterone and antidiuretic hormone (ADH) were measured. Results show that compared to pre-immersion levels, PV decreased throughout WBI sessions, the changes being markedly accentuated in cold conditions. At the end of WBI, maximal PV variations were -6.9% at T34, -14.3% at T18, and -16.3% at T10. Plasma osmolality did not change during and after T34 immersion, while hyperosmolality was present at the end of T18 immersion and began after only 1 h of T10 immersion. In the three temperature conditions, significant losses of water (1.6-1.7 l) and salt (6-8 g) occurred and were associated with similar increases in osmolar and free water clearances. Furthermore, T18 and T10 immersions increased the glomerular filtration rate. There was little or no change in plasma renin and ADH, while the plasma level of aldosterone decreased equally in the three temperature conditions. In conclusion, our data indicate that cold water hastened PV changes induced by immersion, and increased the glomerular filtration rate, causing larger accumulated water losses. The iso-osmotic hypovolemia may impede the resumption of baseline fluid balance. Results are very similar to those repeatedly described by various authors during head-out water immersion.

Язык оригиналаАнглийский
Страницы (с-по)49-58
Число страниц10
ЖурналEuropean Journal of Applied Physiology
Том108
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв 2010
Опубликовано для внешнего пользованияДа

Отпечаток

Immersion
Homeostasis
Temperature
Water
Plasma Volume
Aldosterone
Vasopressins
Glomerular Filtration Rate
Renin
Osmolar Concentration
Hypovolemia
Water-Electrolyte Balance
Blood Proteins
Salts
Head
Urine
Ions

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Public Health, Environmental and Occupational Health
  • Physiology (medical)

Цитировать

Jimenez, C., Regnard, J., Robinet, C., Mourot, L., Gomez-Merino, D., Chennaoui, M., ... Melin, B. (2010). Whole body immersion and hydromineral homeostasis: Effect of water temperature. European Journal of Applied Physiology, 108(1), 49-58. https://doi.org/10.1007/s00421-009-1187-2

Whole body immersion and hydromineral homeostasis : Effect of water temperature. / Jimenez, Chantal; Regnard, Jacques; Robinet, Claude; Mourot, Laurent; Gomez-Merino, Danielle; Chennaoui, Mounir; Jammes, Yves; Dumoulin, Gilles; Desruelle, Anne Virginie; Melin, Bruno.

В: European Journal of Applied Physiology, Том 108, № 1, 01.01.2010, стр. 49-58.

Результат исследований: Материалы для журналаСтатья

Jimenez, C, Regnard, J, Robinet, C, Mourot, L, Gomez-Merino, D, Chennaoui, M, Jammes, Y, Dumoulin, G, Desruelle, AV & Melin, B 2010, 'Whole body immersion and hydromineral homeostasis: Effect of water temperature', European Journal of Applied Physiology, том. 108, № 1, стр. 49-58. https://doi.org/10.1007/s00421-009-1187-2
Jimenez, Chantal ; Regnard, Jacques ; Robinet, Claude ; Mourot, Laurent ; Gomez-Merino, Danielle ; Chennaoui, Mounir ; Jammes, Yves ; Dumoulin, Gilles ; Desruelle, Anne Virginie ; Melin, Bruno. / Whole body immersion and hydromineral homeostasis : Effect of water temperature. В: European Journal of Applied Physiology. 2010 ; Том 108, № 1. стр. 49-58.
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abstract = "This experiment was designed to assess the effects of prolonged whole body immersion (WBI) in thermoneutral and cold conditions on plasma volume and hydromineral homeostasis.10 navy {"}combat swimmers{"} performed three static 6-h immersions at 34°C (T34), 18°C (T18) and 10°C (T10). Rectal temperature, plasma volume (PV) changes, plasma proteins, plasma and urine ions, plasma osmolality, renin, aldosterone and antidiuretic hormone (ADH) were measured. Results show that compared to pre-immersion levels, PV decreased throughout WBI sessions, the changes being markedly accentuated in cold conditions. At the end of WBI, maximal PV variations were -6.9{\%} at T34, -14.3{\%} at T18, and -16.3{\%} at T10. Plasma osmolality did not change during and after T34 immersion, while hyperosmolality was present at the end of T18 immersion and began after only 1 h of T10 immersion. In the three temperature conditions, significant losses of water (1.6-1.7 l) and salt (6-8 g) occurred and were associated with similar increases in osmolar and free water clearances. Furthermore, T18 and T10 immersions increased the glomerular filtration rate. There was little or no change in plasma renin and ADH, while the plasma level of aldosterone decreased equally in the three temperature conditions. In conclusion, our data indicate that cold water hastened PV changes induced by immersion, and increased the glomerular filtration rate, causing larger accumulated water losses. The iso-osmotic hypovolemia may impede the resumption of baseline fluid balance. Results are very similar to those repeatedly described by various authors during head-out water immersion.",
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