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Sweat sodium loss influences serum sodium concentration in a marathon
dc.contributor.author | Lara, B | |
dc.contributor.author | Salinero, J.J. | |
dc.contributor.author | Areces, F. | |
dc.contributor.author | Ruiz-Vicente, D. | |
dc.contributor.author | Gallo-Salazar, C. | |
dc.contributor.author | Abián-Vicen, J. | |
dc.contributor.author | Del Coso, J. | |
dc.date.accessioned | 2017-09-08T08:56:06Z | |
dc.date.available | 2017-09-08T08:56:06Z | |
dc.date.issued | 2017-02 | |
dc.identifier.citation | Lara, B., Salinero, J. J., Areces, F., Ruiz-Vicente, D., Gallo-Salazar, C., Abián-Vicén, J. and Del Coso, J. (2017), Sweat sodium loss influences serum sodium concentration in a marathon. Scand J Med Sci Sports, 27: 152–160 | es |
dc.identifier.uri | http://hdl.handle.net/20.500.12020/396 | |
dc.description.abstract | The aim of this investigation was to determine the influence of sweat electrolyte concentration on body water and electrolyte homeostasis during a marathon. Fifty-one runners completed a marathon race in a warm and dry environment (24.4 ± 3.6 °C). Runners were classified as low-salt sweaters (n = 21; <30 mmol/L of sweat Na+ concentration), typical sweaters (n = 20; ≥30 and <60 mmol/L of sweat Na+ concentration), and salty sweaters (n = 10; ≥60 mmol/L of sweat Na+ concentration). Before and after the race, body mass and a sample of venous blood were obtained. During the race, sweat samples were collected by using sweat patches, and fluid and electrolyte intake were recorded by using self-reported questionnaires. Low-salt, typical and salty sweaters presented similar sweat rates (0.93 ± 0.2, 0.92 ± 0.29, 0.99 ± 0.21 L/h, respectively), body mass changes (-3.0 ± 1.0, -3.3 ± 1.0, -3.2 ± 0.8%), total Na+ intake (12.7 ± 8.1, 11.5 ± 9.7, 14.5 ± 16.6 mmol), and fluid intake (1.3 ± 0.8, 1.2 ± 0.8, 1.2 ± 0.6 L) during the race. However, salty sweaters presented lower post-race serum Na+ concentration (140.8 ± 1.3 vs 142.5 ± 1.1, 142.4 ± 1.4 mmol/L; P < 0.01) and serum osmolality (297 ± 6 vs 299 ± 5, 301 ± 6 mOsm/kg; P < 0.05) than low-salt and typical sweaters. Sweat electrolyte concentration could influence post-race serum electrolyte concentration in the marathon. However, even the saltiest sweaters did not develop exercise-associated hyponatremia or associated symptoms. | es |
dc.language.iso | en | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Sweat sodium loss influences serum sodium concentration in a marathon | es |
dc.type | article | es |
dc.identifier.doi | 10.1111/sms.12637 | |
dc.issue.number | 2 | es |
dc.journal.title | Scand J Med Sci Sports | es |
dc.page.initial | 152 | es |
dc.page.final | 160 | es |
dc.rights.accessRights | embargoedAccess | es |
dc.subject.area | Ciencias de la Actividad Física y del Deporte | es |
dc.subject.keyword | Athletes | es |
dc.subject.keyword | dehydration | es |
dc.subject.keyword | fluid balance | es |
dc.subject.keyword | hyponatremia | es |
dc.subject.keyword | osmolality | es |
dc.subject.unesco | 3201.99 Otras | |
dc.volume.number | 27 | es |
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