Table 1.
Urine flow rate, urine to serum osmolality ratio, and urinary excretion of electrolytes during exercise. Values are mean (SD) for 7 subjects.
| NF | VF | PF | FF | |
|---|---|---|---|---|
| UFR (ml·min–1) | ||||
| Pre | 1.04 (.77) | .85 (.35) | .88 (.61) | .95 (.67) |
| Post | .29 (.11) * | .36 (.16) | .42 (.17) | .51 (.23) |
| U/Sosm | ||||
| Pre | 3.3 (.8) | 3.3 (.4) | 3.3 (.9) | 3.2 (.8) |
| Post | 3.2 (.3) | 3.4 (.1) | 3.3 (.4) | 3.6 (.5) |
| UNa+V (μmol·min–1) | ||||
| Pre | 179 (73) | 175 (117) | 162 (85) | 152 (41) |
| Post | 59 (39) * | 72 (45) | 80 (68) | 88 (71) |
| UK+V (μmol·min–1) | ||||
| Pre | 44 (22) | 38 (11) | 34 (18) | 38 (14) |
| Post | 38 (14) | 45 (24) | 55 (29) | 55 (31) |
| UCl−V (μmol·min–1) | ||||
| Pre | 161 (57) | 161 (94) | 154 (77) | 183 (151) |
| Post | 73 (46) | 97 (55) | 99 (63) | 113 (73) |
UFR, urine flow rate; U/Sosm, urine to serum osmolality ratio; UNa+V, urinary excretion of sodium; UK+V, urinary excretion of potassium; UCl−V, urinary excretion of chloride.
* p < 0.05 denotes a significant difference from pre-exercise.