Table 1. Mean ± SD values for heart rate (HR), core temperature (Tcore) and mean skin temperature ( sk) following 60 min of low and moderate exercise in a thermoneutral (NT), cold (COLD) and cold environment with shivering (SHIV) at baseline (BL) and at end of exercise (EEx).
CARDIOVASCULAR AND | LOW | MOD | |||||
THERMOREGULATORY VARIABLES | NT | COLD | SHIV | NT | COLD | SHIV | |
HR (beats·min−1) | BL | 67±14 | 67±16 | 69±9 | 67±13 | 68±12 | 71±15 |
EEx | 140±10* | 128±13* | 130±18* | 176±13B, * | 161±16* | 165±14* | |
Tcore(°C) | BL | 36.9±0.2 | 37.0±0.2 | 37.1±0.2 | 37.0±0.1 | 37.0±0.1 | 37.0±0.1 |
EEx | 37.8±0.2* | 37.8±0.4* | 37.5±0.6B,C, * | 38.8±0.2A,B, * | 38.4±0.2* | 38.4±0.3* | |
sk (°C) | BL | 33.2±0.6 | 32.6±0.7 | 32.5±0.4 | 32.7±1.0 | 32.6±0.6 | 32.7±0.8 |
EEx | 31.7±1.2A,B | 21.7±2.9A, * | 19.7±1.3* | 32.4±1.9A,B | 23.9±1.4* | 23.0±2.5* |
*, Significant difference between pre and post (p<0.05).
Significantly different from SHIV (p<0.05).
Significantly different from COLD (p<0.05).
Significantly different from NT (p<0.05).