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Table 3 Data for each individual who was hyponatremic post-race

From: An increased fluid intake leads to feet swelling in 100-km ultra-marathoners - an observational field study

Subject

Pre-race plasma [Na+]

(mmol/L)

Post-race plasma [Na+]

(mmol/L)

Change in plasma [Na+]

(mmol/L)

Fluid intake

(L)

Change in

foot volume

(%)

1

139

132

- 7

3.0

- 30

2

139

132

- 7

20.0

+ 12.5

3

139

134

- 5

4.8

- 20

4

139

134

- 5

14.8

+ 8.3