Table 1. Laboratory data during a day without exercise and a day which started with running 5 km at maximal speed (n = 17 participants).
Data are mean values and (SD). Comparisons of data from the race-day with the day of rest was done with linear mixed model. Troponin T that was not detectable (limit of detection 5 ng/ml) was set as zero in calculations.
| Variable | Rest orRace | Baseline | Before breakfast (i.e. after race on race-day) | Afterbreakfast | Beforelunch | After lunch | Evening | Plinear mixed model |
|---|---|---|---|---|---|---|---|---|
| Plasma glucose(mmol/l) | Rest | 5.00 (0.68) | 4.88 (0.59) | 5.02 (1.6) | 5.27 (0.52) | 4.85 (0.55) | 4.90 (0.62) | 0.29 |
| Race | 5.01 (0.37) | 6.36 (1.3) | 5.62 (0.73) | 5.23 (0.69) | 4.93 (0.60) | 4.78 (0.54) | ||
| Serum insulin(pmol/l) | Rest | 36 (13) | 33 (14) | 164 (86) | 91 (87) | 78 (40) | 34 (17) | < 0.0001 |
| Race | 42 (21) | 90 (54) | 171 (59) | 63 (34) | 82 (39) | 36 (25) | ||
| QUICKI1/(log10insulin+log10glucose) | Rest | 0.373 (0.037) | 0.376 (0.028) | 0.301 (0.027) | 0.338 (0.040) | 0.334 (0.023) | 0386 (0.038) | < 0.0001 |
| Race | 0.366 (0.030) | 0.326 (0.037) | 0.291 (0.016) | 0.350 (0.039) | 0.330 (0.021) | 0.383 (0.038) | ||
| Serum cortisol(nmol/l) | Rest | 400 (157) | 394 (187) | 284 (129) | 226 (92) | 203 (92) | 129 (59) | < 0.0001 |
| Race | 408 (137) | 644 (171) | 369 (130) | 254 (136) | 211 (124) | 166 (67) | ||
| Salivary cortisol(nmol/l) | Rest | 9.45 (5.4) | 13.5 (12) | 7.58 (4.6) | 4.54 (1.8) | 4.28 (2.3) | 2.64 (0.88) | 0.037 |
| Race | 11.3 (4.9) | 24.1 (10) | 10.9 (5.4) | 4.89 (1.9) | 6.03 (6.4) | 3.28 (1.1) | ||
| Serum glucagon(pg/ml) | Rest | 44.8 (6.5) | 43.3 (8.9) | 46.2 (6.1) | 47.1 (7.6) | 48.7 (8.9) | 46.8 (4.5) | 0.89 |
| Race | 44.6 (6.5) | 45.4 (7.5) | 48.7 (7.7) | 47.8 (6.1) | 46.8 (8.4) | 46.2 (7.4) | ||
| Serum Troponin T (ng/l) | Not done | |||||||
| Race | 0 (0) | 0 (0) | 5.7 (6.1) | 8.9 (8.8) | 8.0 (9.0) | 4.8 (6.2) | ||
| Metabolic rate (kcal/24h) | Rest | 1709 (236) | Not done | 2044 (247) | Not done | 1923 (290) | 1800 (278) | 0.53 |
| Race | 1694 (266) | Not done | 2245 (310) | Not done | 1976 (286) | 1811 (280) |