Effects of isometric hand grip on cardiovascular reactivity during CPT and recovery
| Variable | Trial | Baseline | CPT | Recovery | p-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pre | 30 sec | 120 sec | 30 sec | 120 sec | Time | Trial | Interaction | |||||
| HR (beats/min) | CON | 62.2±9.2 | 61.2±9.1 | 67.9±14.4 | 65.9±11.4 | 59.9±9.0 | 61.1±8.2 | <0.001 | 0.427 | 0.38 | ||
| IHE | 62.9±11.7 | 61.0±10.7 | 71.4±15.1 | 66.8±13.4 | 60.8±9.6 | 61.8±11.0 | ||||||
| AC (mm2/mm Hg) | CON | 1.108±0.241 | 1.120±0.260 | 1.059±0.269 | 0.989±0.303 |
1.024±0.266 | 1.064±0.289 | <0.001 | 0.012 | 0.02 | ||
| IHE | 1.098±0.243 | 1.231±0.277 |
1.174±0.276 |
1.076±0.358 | 1.043±0.269 | 1.175±0.334 |
||||||
| Carotid β-stiffness (U) | CON | 4.5±0.9 | 4.4±0.9 | 4.9±0.8 | 5.4±1.2 | 4.9±0.8 | 4.6±0.8 | <0.001 | 0.025 | 0.89 | ||
| IHE | 4.4±0.9 | 4.0±0.9 | 4.2±0.8 | 5.3±1.6 | 4.7±1.1 | 4.0±1.0 |
Values are presented as mean±standard deviation.
CPT: cold pressor test, HR: heart rate, CON: control, IHE: isometric handgrip exercise, AC: arterial compliance.
*p<0.05 vs. baseline, †p<0.05 vs. CON.
