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)
* p < 0.05 denotes a significant difference from pre-exercise.
UFR, urine flow rate; U/Sosm, urine to serum osmolality ratio; UNaV, urinary excretion of sodium; UKV, urinary excretion of potassium; UClV, urinary excretion of chloride.