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. 2010 Aug;65(8):789–792. doi: 10.1590/S1807-5932201000080009

Table 2.

Linear index values of heart rate variability (frequency domain) of obese and eutrophic children.

Variables Obese Eutrophic P
LF (ms2) 250.4 ± 177.5 (191.0)a 375.3 ± 212.7 (356.0) 0.001*
[202.84–297.95] [322.54–427.98]
HF (ms2) 195.1 ± 182.5 (135.0) 249.3 ± 159.7 (224.0) 0.007*
[146.15–243.96] [209.67–288.85]
LFnu (%) 59.26 ± 13.07 (58.55) 60.57 ± 11.68 (62.10) 0.565
[55.76–62.77] [57.68–63.47]
HFnu (%) 40.73 ± 13.07 (41.45) 39.43 ± 11.68 (37.90) 0.566
[37.23–44.24] [36.53–42.32]
LF/HF ratio 1.801 ± 1.25 (1.41) 1.774 ± 0.91 (1.64) 0.425
[1.47–2.14] [1.55–2.00]
a

Mean ± SD (median); [95% CI];

*

significant difference between groups (Mann-Whitney U-test); LF: low frequency; HF: high frequency; ms: milliseconds; LFnu: low frequency in normalized units; HFnu: high frequency in normalized units