Sweat sodium concentration during exercise in the heat in aerobically trained and untrained humans

2011 ◽  
Vol 111 (11) ◽  
pp. 2873-2881 ◽  
Author(s):  
Nassim Hamouti ◽  
Juan Del Coso ◽  
Juan F. Ortega ◽  
Ricardo Mora-Rodriguez
Keyword(s):  
Sodium Concentration ◽  
Sweat Sodium Concentration ◽  
Sweat Sodium ◽  
Aerobically Trained

Sweat Sodium Concentration in NFL Players during Dietary Sodium Supplementation compared to when they are not Supplemented

2008 ◽  
Vol 40 (Supplement) ◽  
pp. S86 ◽  
Author(s):  
Arthur R. Bartolozzi ◽  
Sandra Fowkes Godek ◽  
Chris Peduzzi ◽  
Jason Kopec ◽  
Richard Burkholder
Keyword(s):  
Sodium Concentration ◽  
Dietary Sodium ◽  
Sweat Sodium Concentration ◽  
Sweat Sodium ◽  
Sodium Supplementation

Variability of Measurements of Sweat Sodium Using the Regional Absorbent-Patch Method

2014 ◽  
Vol 9 (5) ◽  
pp. 832-838 ◽  
Author(s):  
Christine E. Dziedzic ◽  
Megan L. Ross ◽  
Gary J. Slater ◽  
Louise M. Burke
Keyword(s):  
Analytical Techniques ◽  
Sodium Concentration ◽  
Whole Body ◽  
Single Measure ◽  
Mean Values ◽  
Analytical Technique ◽  
Significant Difference ◽  
The Impact ◽  
Sweat Sodium Concentration ◽  
Sweat Sodium

Context:There is interest in including recommendations for the replacement of the sodium lost in sweat in individualized hydration plans for athletes.Purpose:Although the regional absorbent-patch method provides a practical approach to measuring sweat sodium losses in field conditions, there is a need to understand the variability of estimates associated with this technique.Methods:Sweat samples were collected from the forearms, chest, scapula, and thigh of 12 cyclists during 2 standardized cycling time trials in the heat and 2 in temperate conditions. Single measure analysis of sodium concentration was conducted immediately by ion-selective electrodes (ISE). A subset of 30 samples was frozen for reanalysis of sodium concentration using ISE, flame photometry (FP), and conductivity (SC).Results:Sweat samples collected in hot conditions produced higher sweat sodium concentrations than those from the temperate environment (P= .0032). A significant difference (P= .0048) in estimates of sweat sodium concentration was evident when calculated from the forearm average (mean ± 95% CL; 64 ± 12 mmol/L) compared with using a 4-site equation (70 ± 12 mmol/L). There was a high correlation between the values produced using different analytical techniques (r2= .95), but mean values were different between treatments (frozen FP, frozen SC > immediate ISE > frozen ISE;P< .0001).Conclusion:Whole-body sweat sodium concentration estimates differed depending on the number of sites included in the calculation. Environmental testing conditions should be considered in the interpretation of results. The impact of sample freezing and subsequent analytical technique was small but statistically significant. Nevertheless, when undertaken using a standardized protocol, the regional absorbent-patch method appears to be a relatively robust field test.

scholarly journals Heat acclimation improves sweat gland function and lowers sweat sodium concentration in an adult with cystic fibrosis

2020 ◽  
Author(s):  
Ashley G.B. Willmott ◽  
Robert Holliss ◽  
Zoe Saynor ◽  
Jo Corbett ◽  
Adam J. Causer ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
Sweat Gland ◽  
Heat Acclimation ◽  
Sodium Concentration ◽  
Gland Function ◽  
Sweat Sodium Concentration ◽  
Sweat Sodium

scholarly journals Normative data for sweating rate, sweat sodium concentration, and sweat sodium loss in athletes: An update and analysis by sport

2019 ◽  
Vol 37 (20) ◽  
pp. 2356-2366 ◽  
Author(s):  
Kelly A. Barnes ◽  
Melissa L. Anderson ◽  
John R. Stofan ◽  
Kortney J. Dalrymple ◽  
Adam J. Reimel ◽  
...  
Keyword(s):  
Normative Data ◽  
Sodium Concentration ◽  
Sweating Rate ◽  
Sodium Loss ◽  
Sweat Sodium Concentration ◽  
Sweat Sodium

scholarly journals SHORT-TERM CHANGES IN DIETARY SODIUM INTAKE INFLUENCE SWEAT SODIUM CONCENTRATION AND MUSCLE SODIUM CONTENT IN HEALTHY SUBJECTS

2019 ◽  
Vol 37 ◽  
pp. e62-e63 ◽  
Author(s):  
P. Braconnier ◽  
B. Milani ◽  
N. Loncle ◽  
J.M. Lourenco ◽  
W. Brito ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Sodium Intake ◽  
Sodium Concentration ◽  
Sodium Content ◽  
Dietary Sodium ◽  
Short Term ◽  
Sweat Sodium Concentration ◽  
Sweat Sodium

scholarly journals No Relation Between Short-term Sodium Intake And Whole Body Sweat Sodium Concentration During Exercise-heat Stress

2020 ◽  
Vol 52 (7S) ◽  
pp. 967-967
Author(s):  
Ryan P. Nuccio ◽  
Meagan O'Connor ◽  
Corey T. Ungaro ◽  
Kelly A. Barnes ◽  
Adam J. Reimel ◽  
...  
Keyword(s):  
Heat Stress ◽  
Sodium Intake ◽  
Sodium Concentration ◽  
Whole Body ◽  
Short Term ◽  
Sweat Sodium Concentration ◽  
Sweat Sodium
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