Table 4.
Pre-exercise measures
| Early Follicular | Late Follicular | Mid-Luteal | P Value | F Value | |
|---|---|---|---|---|---|
| Cardiovascular and thermal measures |
|
||||
| Mean arterial pressure, mmHg | 87 ± 9 | 86 ± 7 | 86 ± 9 | 0.915 | (F1, 16 = 0.04) |
| Heart rate, beats/min | 62 ± 9 | 61 ± 11 | 65 ± 10 | 0.934 | (F2, 17 = 2.87) |
| Core temperature, °C | 37.1 ± 0.3 | 36.8 ± 0.6# | 37.2 ± 0.3 | 0.053 | (F1, 13 = 4.33) |
| Mean skin temperature, °C | 32.3 ± 0.8 | 32.5 ± 0.8 | 32.4 ± 0.9 | 0.744 | (F2, 19 = 0.28) |
| Water and electrolyte homeostasis measures | |||||
| Urine specific gravity, au | 1.004 ± 0.004 | 1.003 ± 0.005 | 1.005 ± 0.006 | 0.267 | (F2, 16 = 1.41) |
| Serum osmolality, mosmol/kg | 290 ± 6 | 288 ± 2 | 287 ± 5 | 0.382 | (F2, 30 = 0.99) |
| Urine osmolality, mosmol/kg | 174 ± 141 | 160 ± 154 | 234 ± 224 | 0.180 | (F1, 13 = 2.01) |
| Serum sodium, mmol/L | 141 ± 1 | 141 ± 1 | 140 ± 1 | 0.072 | (F2, 21 = 3.04) |
| Urine sodium, mmol/L | 57 ± 51 | 41 ± 29 | 47 ± 48 | 0.422 | (F1, 13 = 0.79) |
Data were analyzed with one-way linear mixed model. One-way repeated measures linear mixed model F- and P-values are reported, and data are presented as means ± SD #Significantly different from ML phase (P = 0.041). All data are n = 12.