The Analysis of How Apnea Influences the Autonomic Nervous System Using Short-Term Heart Rate Variability Indices

Table 3

Result of HRV during the normal respiratory condition and apnea.

	Mean-RR (ms)	rMSSD (ms)	nLF (%)	nHF (%)	LF/HF	α1
Normal
Respiratory state	928.83 ± 21.99	35.89 ± 4.31	38.22 ± 2.57	61.78 ± 2.57	0.72 ± 0.48	0.82 ± 0.04
1^st apnea	966.89 ± 20.89	21.54 ± 2.08	49.09 ± 3.8	50.91 ± 3.8	1.55 ± 0.26	1.22 ± 0.09
2^nd apnea	965.96 ± 21.85	20.7 ± 2.39	50.85 ± 3.09	49.15 ± 3.09	1.41 ± 0.18	1.21 ± 0.09
3^rd apnea	967.5 ± 23.21	21.19 ± 2.46	48.61 ± 3.39	51.39 ± 3.39	1.51 ± 0.29	1.16 ± 0.09
4^th apnea	983.39 ± 22.05	20.23 ± 1.76	48.74 ± 3.22	51.26 ± 3.22	1.25 ± 0.15	1.16 ± 0.09
5^th apnea	964.61 ± 20.59	20.42 ± 2.32	44.87 ± 4.2	55.13 ± 4.2	1.48 ± 0.32	1.07 ± 0.1
6^th apnea	959.22 ± 21.76	20.55 ± 2.16	51.29 ± 3.35	48.71 ± 3.35	1.54 ± 0.22	1.17 ± 0.08
7^th apnea	964.89 ± 21.99	22.36 ± 2.19	46.61 ± 3.51	53.38 ± 3.51	1.35 ± 0.23	1.3 ± 0.11
8^th apnea	968.33 ± 21.46	22.22 ± 2.59	44.75 ± 4.23	55.25 ± 4.23	1.42 ± 0.25	1.1 ± 0.09
9^th apnea	960.03 ± 22.11	22.61 ± 2.38	50.07 ± 3.3	49.93 ± 3.3	1.49 ± 0.26	1.19 ± 0.1
10^th apnea	961.81 ± 20.46	21.79 ± 2.36	45.86 ± 4.03	54.13 ± 4.03	1.6 ± 0.35	1.19 ± 0.1

Values are expressed as mean ± SE. Statistical significance between the 10 events of apnea with normal respiration: significant.