TABLE 2.
FROM:
Relationships of Cardiac Autonomic Function With Metabolic Abnormalities in Childhood Obesity
Christopher L. Kaufman, Daniel R. Kaiser, Julia Steinberger, Aaron S. Kelly and Donald R. Dengel
BACK TO ARTICLETable 2.. Differences in HRV parameters of normal-weight, overweight, and obese children
| Variable | Normal-weight | Overweight | Obese | p |
|---|---|---|---|---|
| R-R interval (s) | 0.884  0.144 | 0.842 0.086 | 0.828 0.092 | 0.444 |
| SDRR (s) | 0.11 0.03 | 0.09 0.03 | 0.08 0.03 | 0.068 |
| RMSSD (ms) | 85.8 18.1 | 71.1 26.6 | 63.7 21.5 | 0.061 |
| LFnu (%) | 39.9 10.0 | 50.9 7.0 | 58.2 11.8*
| 0.001 |
| HFnu (%) | 60.1 10.0 | 49.1 7.0 | 41.8 11.8*
| 0.001 |
| LF:HF | 0.70 0.25 | 1.09 0.38 | 1.60 0.84*
| 0.003 |
| Total power (ms2) | 2124 379 | 1492 1014 | 1439 969 | 0.133 |
| Sample entropy | 1.737 0.16 | 1.539 0.15 | 1.510 0.33 | 0.070 |
HRV, heart rate variability; R-R, inter-beat; SDRR, standard deviation of normal R-R intervals, RMSSD, square root of the mean squared differences of successive R-R intervals; LFnu, low frequency normalized unit; HFnu, high frequency normalized unit; LF:HF, low frequency to high frequency ratio. Data are mean standard deviation; p value reported represents overall ANOVA.
* Significantly different from normal-weight, p< 0.05.
