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Figure 2 | Nutrition Journal

Figure 2

From: Water and sodium intake habits and status of ultra-endurance runners during a multi-stage ultra-marathon conducted in a hot ambient environment: an observational field based study

Figure 2

Serum sodium (S Na ) responses of UER along MSUM competition. (A) SNa concentration, (B) Individual SNa responses. Mean (SD): UER (■, n = 19), slow runners (SR; MSUM mean speed <8 km/h, n = 11), and fast runners (FR; MSUM mean speed ≥8 km/h, n = 8). a Normal physiological range 135 to 145 mmol/L [32]; hyponatraemia <135 mmol/L [24]. Closed bars represent a pre- to post-stage increase in SNa concentration. Open bars present a pre- to post-stage decrease in SNa concentration. †† p < 0.01 and † p < 0.05 vs. pre-Stage 1; ** p < 0.01 and * p < 0.05 vs. pre-stage.

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Nutrition Journal

ISSN: 1475-2891

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