Table 1.
Thermoregulatory, cardiovascular, respiratory, and cerebrovascular responses during normothermia and heat stress
|
Condition |
P Value | ||
|---|---|---|---|
| Normothermia | Heat stress | ||
| Core temperature, °C | 36.9±0.3 | 38.0±0.3 | <0.001 |
| Mean skin temperature, °C | 34.8±0.5 | 38.5±0.4 | <0.001 |
| Heart rate, beats/min | 56±9 | 95±15 | <0.001 |
| Blood pressure, mmHg | 91±6 | 89±6 | 0.36 |
| MCA Vmean, cm/s | 69±14 | 60±13 | 0.01 |
| Forearm CVC, AU/mmHg | 0.65±0.68 | 2.32±0.86 | <0.001 |
| Respiratory rate, breaths/min | 14±4 | 17±5 | 0.06 |
| End-tidal Pco2, Torr | 42±1 | 39±1 | 0.07 |
Values are means ± SD. MCA Vmean, middle cerebral artery blood velocity; CVC, cutaneous vascular conductance; AU, arbitrary units.