参数

正常

轻度疲劳

重度疲劳(嗜睡)

P值

SDNN

49.7 ± 6.0

52.6 ± 15.5

40.0 ± 7.2

0.016^*

SDANN

37.3 ± 4.0

36.1 ± 9.2

28.5 ± 2.6

0.006^*

SDNNi

252.3 ± 3.0

254.3 ± 1.6

251.9 ± 5.0

0.033^*

MeanHR

76.2 ± 1.1

75.7 ± 1.0

76.0 ± 1.4

0.015^*

LF/HF

1.5 ± 0.4

1.1 ± 0.4

0.5 ± 0.2

0.001^*

pNN50

10.8 ± 1.8

13.1 ± 2.1

12.3 ± 5.0

0.476

RMSSD

31.8 ± 1.5

33.2 ± 2.2

32.5 ± 2.3

0.473

LFn (%)

59.0 ± 7.3

50.0 ± 8.4

33.1 ± 8.6

0.077

HFn (%)

41.0 ± 7.3

20.0 ± 8.4

66.9 ± 8.6

0.457

Max-min

249.7 ± 29.1

267.9 ± 63.7

207.2 ± 34.3

0.028^*