Table 2.
Linear regression examining the interactive effects of physiological reactivity/recovery and flow-mediated dilatation on IMT (N = 61)
| R2 |
Adjusted R2** |
R2 change*** | p-value | |
|---|---|---|---|---|
| REACTIVITY | ||||
| HR reactivity × FMD* | 0.38 | 0.31 | 0.002 | 0.704 |
| RSA reactivity × FMD* | 0.33 | 0.25 | 0.020 | 0.214 |
| PEP reactivity × FMD* | 0.46 | 0.40 | 0.010 | 0.321 |
| RECOVERY | ||||
| HR recovery × FMD* | 0.30 | 0.23 | 0.000 | 0.886 |
| RSA recovery × FMD* | 0.38 | 0.26 | 0.056 | 0.037 |
| PEP recovery × FMD* | 0.43 | 0.36 | 0.087 | 0.006 |
*Each interaction is examined in a separate analysis including the main effects of sex, age, brachial baseline diameter, FMD, and the reactivity/recovery measure in question, but the main effects are not presented in the Table.
**Calculated for the whole model.
***Refers to the interaction term.
HR = heart rate (bpm); RSA = respiratory sinus arrhythmia (log ms2); PEP = pre-ejection period (ms); FMD = flow-mediated dilatation (%).