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. 2023 May 11;55(3):488–494. [Article in Chinese] doi: 10.19723/j.issn.1671-167X.2023.03.015

表 2.

研究期间研究对象HRV各指标水平(n=50)

The level of HRV indicators of the research subjects during the research period (n=50)

Indicator First visit Second visit All
Data are expressed as median (interquartile range). SDNN, standard deviation of all normal to normal intervals; SDANN, standard deviation of average normal to normal intervals; rMSSD, square root of the mean squared differences of successive normal to normal intervals; pNN50, percentage of adjacent normal to normal intervals differing by more than 50 ms; TP, total power; VLF, very low frequency power; LF, low frequency power; HF, high frequency power.
Heart rate/(beats/min) 62.0 (11.00) 62.0 (12.0) 62.0 (11.0)
SDNN/ms 65.0 (42.0) 64.0 (43.0) 65.0 (43.0)
SDANN/ms 64.0 (43.0) 64.0 (43.0) 64.0 (44.0)
rMSSD/ms 31.0 (16.0) 31.0 (16.0) 31.0 (16.0)
pNN50/% 35.0 (36.0) 34.0 (38.0) 34.0 (37.0)
TP/ms2 3 175.1 (4 355.6) 3 136.5 (4 188.2) 3 153.4 (4 293.1)
VLF/ms2 1 211.4 (2 857.7) 1 196.5 (2 700.2) 1 205.8 (2 785.7)
LF/ms2 639.1 (852.1) 623.1 (915.1) 633.0 (882.8)
HF/ms2 697.6 (901.9) 649.9 (950.9) 674.6 (928.3)