Table 3. Physiological effects of ultraendurance cycling on selected biochemical parameters (values in brackets indicate normal range).

 
Before race
Immediately after
24h after
Creatinine (0.70 - 1.40 mg.L-1)
0.96
0.93
1.04
Urea (10 - 50 mg.dL-1)
33
58
57
Uric acid (2.40 - 7.50 mg.dL-1)
5.0
5.9
5.9
Protein (6.3 - 8.2 g.dL-1)
7.41
7.67
7.54
CK (12 - 126 U.L-1)
43
420
482
LDH (120 - 240 U.L-1)
200
239
266
cTnI (< 0.05 mg.L-1)
n.d.
n.d.
n.d.
CRP (0 - 0.7 mg.L-1)
< 0.7
2.03
1.89
Na+ (135 - 152 mmol.L-1)
142
145
144
K+ (3.4 - 4.6 mmol.L-1)
4.0
3.5
3.5
Cl- (95 - 110 mmol.L-1)
102
98
101
Ca2+ (2.1 -2.7 mmol.L-1)
2.27
2.46
2.15
Mg2+ (0.60 - 0.95 mmol.L-1)
0.83
0.97
0.91
RBC (4.4 - 5.9 x 1012.L-1)
4.39
4.42
4.15
Hct (0.40 - 0.52)
0.40
0.41
0.39
Hb (13.3 - 17.7 g.dL-1)
14.0
14.2
13.2
%DPV (related to pre-race)
-
- 2
+ 9
Leukocytes (4 - 10 x 109.L-1)
5.4
12.8
9.7
Thrombocytes (140 - 400 x 109.L-1)
261
325
275
n.d. = not detectable