NDLI: Alterations in Body Fluid Balance During Fin Swimming in 29 °C Water in a Population of Special Forces Divers.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Castagna, O. Desruelle, A. V. Blatteau, J. E. Schmid, B. Dumoulin, G. Regnard, J.
Description	Country affiliation: France Author Affiliation: Castagna O ( Military Biomedical Research Institute (IRBA), Underwater Research Team (ERRSO), Toulon Cedex, France.); Desruelle AV ( Military Biomedical Research Institute (IRBA), Underwater Research Team (ERRSO), Toulon, France.); Blatteau JE ( Department of Hyperbaric and Diving Medicine, Ste Anne's Military Hospital, Toulon Armées, France.); Schmid B ( Military Biomedical Research Institute (IRBA), Underwater Research Team (ERRSO), Toulon Armées, France.); Dumoulin G ( Université de Franche-comte, Besancon, France.); Regnard J ( Université de Franche-comte, Besancon, France.)
Abstract	Highly trained 'combat swimmers' encounter physiological difficulties when performing missions in warm water. The aim of this study was to assess the respective roles of immersion and physical activity in perturbing fluid balance of military divers on duty in warm water. 12 trained divers performed 2 dives each (2 h, 3 m depth) in fresh water at 29 °C. Divers either remained Static or swam continuously (Fin) during the dive. In the Fin condition, oxygen consumption and heart rate were 2-fold greater than during the Static dive. Core and skin temperatures were also higher (Fin: 38.5±0.4 °C and 36.2±0.3 °C and Static: 37.2±0.3 °C and 34.3±0.3 °C; respectively p=0.0002 and p=0.0003). During the Fin dive, the average mass loss was 989 g (39% urine loss, 41% sweating and 20% insensible water loss and blood sampling); Static divers lost 720 g (84% urine loss, 2% sweating and 14% insensible water loss and blood sampling) (p=0.003). In the Fin condition, a greater decrease in total body mass and greater sweating occurred, without effects on circulating renin and aldosterone concentrations; diuresis was reduced, and plasma volume decreased more than in the Static condition.
File Format	HTM / HTML
ISSN	01724622
Issue Number	14
Volume Number	36
e-ISSN	14393964
Journal	International Journal of Sports Medicine
Language	English
Publisher	Thieme
Publisher Date	2015-12-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Sports Medicine Body Temperature Regulation Military Personnel Swimming Physiology Temperature Water-electrolyte Balance Water Adult Aldosterone Blood Dehydration Etiology Energy Metabolism Heart Rate Humans Natriuresis Oxygen Consumption Plasma Volume Potassium Renin Journal Article
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physical Therapy, Sports Therapy and Rehabilitation Sports Science

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