Key result
Laboratory-measured baroreflex sensitivity (index alpha) was significantly correlated with 24-hour heart rate variability indices, including total power (r = 0.53, P<0.001).
Observational (n=55)
Effect estimate: r = 0.53
p-value: p=<0.001
Laboratory measures of baroreflex sensitivity significantly correlate with 24-hour ambulatory measures of heart rate variability, regardless of daytime or night-time activity levels.
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May inform combined autonomic phenotyping in hypertension; leaves open whether ambulatory HRV can surrogate laboratory baroreflex assessment.
Lucini et al. (2002) conducted an observational in Volunteers with a wide range of arterial pressure (n=55). Baroreflex sensitivity (index alpha) was evaluated on Correlation between index alpha and 24-hour heart rate variability indices (e.g., total power) (r = 0.53, p=<0.001). Laboratory-measured baroreflex sensitivity (index alpha) was significantly correlated with 24-hour heart rate variability indices, including total power (r = 0.53, P<0.001).
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