Table 2.
Cardiac function during whole body heating and normothermic time control trials
| Baseline | Prior to Exercise | |
|---|---|---|
| SV, mL | ||
| WBH | 117 ± 14 | 123 ± 17# |
| NT | 114 ± 16 | 116 ± 16 |
| CO, L/min | ||
| WBH | 7.3 ± 1.4 | 8.4 ± 1.9*# |
| NT | 6.9 ± 1.3 | 7.0 ± 1.3 |
| TPR, mmHg·min/L | ||
| WBH | 12.9 ± 3.2 | 10.9 ± 3.0*# |
| NT | 13.6 ± 2.8 | 14.0 ± 3.0 |
| Sm, cm/s | ||
| WBH | 9.54 ± 1.26 | 10.04 ± 1.79 |
| NT | 9.77 ± 1.51 | 9.59 ± 1.72 |
| E, cm/s | ||
| WBH | 74.0 ± 14 | 68.9 ± 13.8* |
| NT | 71.8 ± 15.5 | 72.3 ± 12.5 |
| Em, cm/s | ||
| WBH | 10.35 ± 1.42 | 9.37 ± 1.52*# |
| NT | 10.56 ± 1.81 | 10.53 ± 1.75 |
| E/Em | ||
| WBH | 7.20 ± 1.22 | 7.55 ± 2.08 |
| NT | 6.93 ± 1.62 | 6.96 ± 1.28 |
| Am, cm/s | ||
| WBH | 12.18 ± 2.29 | 12.59 ± 3.97 |
| NT | 12.11 ± 2.73 | 12.05 ± 2.96 |
Two-way repeated-measures ANOVA was used for statistical analysis. *P < 0.05 vs. respective baseline; #P < 0.05 vs. normothermic control trial. Subject number n = 14. Am, second negative diastolic velocity when the mitral annulus moves toward the base away from the apex; CO, cardiac output; E, early diastolic mitral flow; E/Em, ratio of early diastolic mitral flow over Em; Em, first rapid negative diastolic velocity when the mitral annulus moves toward the base away from the apex; NT, normothermic time control trial; Sm, positive systolic velocity when the mitral ring moved toward the cardiac apex; SV, stroke volume; TPR, total peripheral resistance; WBH, whole body heating trial.