Research Article
Obesity in American Indian and Mexican American Men and Women: Associations with Blood Pressure and Cardiovascular Autonomic Control
Table 3
Intercorrelations between metrics of mean HR, overall HRV, cardiovagal control, and cardiac sympathetic activity.
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Note: Mean HR: mean heart rate; SDNN: standard deviation of interbeat interval (IBI); CSI: Toichi cardiac sympathetic index (sympathetic-related variability); RSA: natural log of variance of filtered (0.12–0.40 Hz) IBI; RMSSD: root mean square of successive differences between IBIs; pNN50: the percentage of the absolute differences between consecutive IBIs that are greater than 50 ms; HF-HRV: high frequency (HF)-heart rate variability (HRV) power (0.12–0.40 Hz); LF-HRV: low frequency (LF)-HRV power (0.04–0.12 Hz); HRDB: the HR response to deep breathing at 6 breaths per minute. Indicates that Pearson’s correlation is significant at P < 0.05. Indicates that Pearson’s correlation is significant at P < 0.001. |