Table 1.
Descriptive data for the entire data set (1,944 sweat tests from 1,304 subjects)
| Mean | SD | Median | Range (Min to Max) | |
|---|---|---|---|---|
| Dependent variable | ||||
| Whole body sweat sodium concentration, mmol/L | 42.0 | 12.6 | 40.3 | 17–106 |
| Independent variables | ||||
| Body mass, kg | 82.34 | 20.51 | 78.67 | 38.50–164.20 |
| Age, yr | 26 | 9 | 25 | 12–70 |
| Youth | 16 | 1 | 16 | 12–17 |
| Adult | 29 | 8 | 28 | 18–70 |
| Air temperature, °C | 26.3 | 5.2 | 27.7 | 4.0–36.6 |
| Relative humidity, % | 56 | 15 | 55 | 13–87 |
| Exercise duration, h | 1.7 | 0.8 | 1.5 | 0.4–4.1 |
| Exercise fluid balance (% change in body mass from baseline) | −0.80 | 0.85 | −0.72 | −4.38 to 2.86 |
| Energy expenditure, kcal/h* | 542 | 244 | 537 | 82–1735 |
| Whole body sweating rate, L/h | 1.09 | 0.50 | 1.03 | 0.19–5.64 |
*
Models 2 and 3 only.