Normative data on regional sweat-sodium concentrations of professional male team-sport athletes

Mayur K. Ranchordas, Nicholas B. Tiller, Girish Ramchandani, Raj Jutley, Andrew Blow, Jonny Tye, Ben Drury

Research output: Contribution to journalJournal Article

2 Citations (Scopus)
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Abstract

BackgroundThe purpose of this paper was to report normative data on regional sweat-sodium concentrations of various professional male team-sport athletes, and to compare sweat-sodium concentrations among sports. Data to this effect would inform our understanding of athlete sodium requirements, thus allowing for the individualisation of sodium replacement strategies. Accordingly, data from 696 athletes (Soccer, n = 270; Rugby, n = 181; Baseball, n = 133; American Football, n = 60; Basketball, n = 52) were compiled for a retrospective analysis. Regional sweat-sodium concentrations were collected using the pilocarpine iontophoresis method, and compared to self-reported measures collected via questionnaire.
ResultsSweat-sodium concentrations were significantly higher (p < 0.05) in American football (50.4 ± 15.3 mmol·L−1), baseball (54.0 ± 14.0 mmol·L−1), and basketball (48.3 ± 14.0 mmol·L−1) than either soccer (43.2 ± 12.0 mmol·L−1) or rugby (44.0 ± 12.1 mmol·L−1), but with no differences among the N.American or British sports. There were strong positive correlations between sweat-sodium concentrations and self-reported sodium losses in American football (r s = 0.962, p < 0.001), basketball (r s = 0.953, p < 0.001), rugby (r s = 0.813, p < 0.001), and soccer (r s = 0.748, p < 0.001).
ConclusionsThe normative data provided on sweat-sodium concentrations might assist sports science/medicine practitioners in generating bespoke hydration and electrolyte-replacement strategies to meet the sodium demands of professional team-sport athletes. Moreover, these novel data suggest that self-reported measures of sodium loss might serve as an effective surrogate in the absence of direct measures; i.e., those which are more expensive or non-readily available.
Original languageEnglish
Number of pages8
JournalJournal of the International Society of Sports Nutrition
Volume14
Issue number40
DOIs
Publication statusPublished - 30 Oct 2017

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sweat
Sweat
athletes
sports
Athletes
Sports
Sodium
sodium
Football
Basketball
Soccer
Baseball
pilocarpine
Iontophoresis
Sports Medicine
Pilocarpine
Electrolytes
electrolytes
medicine
questionnaires

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Ranchordas, Mayur K. ; Tiller, Nicholas B. ; Ramchandani, Girish ; Jutley, Raj ; Blow, Andrew ; Tye, Jonny ; Drury, Ben. / Normative data on regional sweat-sodium concentrations of professional male team-sport athletes. In: Journal of the International Society of Sports Nutrition. 2017 ; Vol. 14, No. 40.
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abstract = "BackgroundThe purpose of this paper was to report normative data on regional sweat-sodium concentrations of various professional male team-sport athletes, and to compare sweat-sodium concentrations among sports. Data to this effect would inform our understanding of athlete sodium requirements, thus allowing for the individualisation of sodium replacement strategies. Accordingly, data from 696 athletes (Soccer, n = 270; Rugby, n = 181; Baseball, n = 133; American Football, n = 60; Basketball, n = 52) were compiled for a retrospective analysis. Regional sweat-sodium concentrations were collected using the pilocarpine iontophoresis method, and compared to self-reported measures collected via questionnaire.ResultsSweat-sodium concentrations were significantly higher (p < 0.05) in American football (50.4 ± 15.3 mmol·L−1), baseball (54.0 ± 14.0 mmol·L−1), and basketball (48.3 ± 14.0 mmol·L−1) than either soccer (43.2 ± 12.0 mmol·L−1) or rugby (44.0 ± 12.1 mmol·L−1), but with no differences among the N.American or British sports. There were strong positive correlations between sweat-sodium concentrations and self-reported sodium losses in American football (r s = 0.962, p < 0.001), basketball (r s = 0.953, p < 0.001), rugby (r s = 0.813, p < 0.001), and soccer (r s = 0.748, p < 0.001).ConclusionsThe normative data provided on sweat-sodium concentrations might assist sports science/medicine practitioners in generating bespoke hydration and electrolyte-replacement strategies to meet the sodium demands of professional team-sport athletes. Moreover, these novel data suggest that self-reported measures of sodium loss might serve as an effective surrogate in the absence of direct measures; i.e., those which are more expensive or non-readily available.",
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Normative data on regional sweat-sodium concentrations of professional male team-sport athletes. / Ranchordas, Mayur K.; Tiller, Nicholas B.; Ramchandani, Girish; Jutley, Raj; Blow, Andrew; Tye, Jonny; Drury, Ben.

In: Journal of the International Society of Sports Nutrition, Vol. 14, No. 40, 30.10.2017.

Research output: Contribution to journalJournal Article

TY - JOUR

T1 - Normative data on regional sweat-sodium concentrations of professional male team-sport athletes

AU - Ranchordas, Mayur K.

AU - Tiller, Nicholas B.

AU - Ramchandani, Girish

AU - Jutley, Raj

AU - Blow, Andrew

AU - Tye, Jonny

AU - Drury, Ben

PY - 2017/10/30

Y1 - 2017/10/30

N2 - BackgroundThe purpose of this paper was to report normative data on regional sweat-sodium concentrations of various professional male team-sport athletes, and to compare sweat-sodium concentrations among sports. Data to this effect would inform our understanding of athlete sodium requirements, thus allowing for the individualisation of sodium replacement strategies. Accordingly, data from 696 athletes (Soccer, n = 270; Rugby, n = 181; Baseball, n = 133; American Football, n = 60; Basketball, n = 52) were compiled for a retrospective analysis. Regional sweat-sodium concentrations were collected using the pilocarpine iontophoresis method, and compared to self-reported measures collected via questionnaire.ResultsSweat-sodium concentrations were significantly higher (p < 0.05) in American football (50.4 ± 15.3 mmol·L−1), baseball (54.0 ± 14.0 mmol·L−1), and basketball (48.3 ± 14.0 mmol·L−1) than either soccer (43.2 ± 12.0 mmol·L−1) or rugby (44.0 ± 12.1 mmol·L−1), but with no differences among the N.American or British sports. There were strong positive correlations between sweat-sodium concentrations and self-reported sodium losses in American football (r s = 0.962, p < 0.001), basketball (r s = 0.953, p < 0.001), rugby (r s = 0.813, p < 0.001), and soccer (r s = 0.748, p < 0.001).ConclusionsThe normative data provided on sweat-sodium concentrations might assist sports science/medicine practitioners in generating bespoke hydration and electrolyte-replacement strategies to meet the sodium demands of professional team-sport athletes. Moreover, these novel data suggest that self-reported measures of sodium loss might serve as an effective surrogate in the absence of direct measures; i.e., those which are more expensive or non-readily available.

AB - BackgroundThe purpose of this paper was to report normative data on regional sweat-sodium concentrations of various professional male team-sport athletes, and to compare sweat-sodium concentrations among sports. Data to this effect would inform our understanding of athlete sodium requirements, thus allowing for the individualisation of sodium replacement strategies. Accordingly, data from 696 athletes (Soccer, n = 270; Rugby, n = 181; Baseball, n = 133; American Football, n = 60; Basketball, n = 52) were compiled for a retrospective analysis. Regional sweat-sodium concentrations were collected using the pilocarpine iontophoresis method, and compared to self-reported measures collected via questionnaire.ResultsSweat-sodium concentrations were significantly higher (p < 0.05) in American football (50.4 ± 15.3 mmol·L−1), baseball (54.0 ± 14.0 mmol·L−1), and basketball (48.3 ± 14.0 mmol·L−1) than either soccer (43.2 ± 12.0 mmol·L−1) or rugby (44.0 ± 12.1 mmol·L−1), but with no differences among the N.American or British sports. There were strong positive correlations between sweat-sodium concentrations and self-reported sodium losses in American football (r s = 0.962, p < 0.001), basketball (r s = 0.953, p < 0.001), rugby (r s = 0.813, p < 0.001), and soccer (r s = 0.748, p < 0.001).ConclusionsThe normative data provided on sweat-sodium concentrations might assist sports science/medicine practitioners in generating bespoke hydration and electrolyte-replacement strategies to meet the sodium demands of professional team-sport athletes. Moreover, these novel data suggest that self-reported measures of sodium loss might serve as an effective surrogate in the absence of direct measures; i.e., those which are more expensive or non-readily available.

U2 - 10.1186/s12970-017-0197-4

DO - 10.1186/s12970-017-0197-4

M3 - Journal Article

VL - 14

JO - Journal of the International Society of Sports Nutrition

JF - Journal of the International Society of Sports Nutrition

SN - 1550-2783

IS - 40

ER -