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Table 2 Comparision of the parameters for HRV in the subjects

From: Effect of long term high altitude exposure on cardiovascular autonomic adjustment during rest and post-exercise recovery

 

Resting

Recovering

Variable

Highlanders

Lowlanders

Highlanders

Lowlanders

Time domain

 SDNNb

56.6(43–71.9)

50.8(35.1–80.7)

80.3(54.2–99.8)

62.7 (50.7–79)

 RMSSDc

47.3 (36.5–69)

37.9 (31.6–81.6)

48 (32.6–85.6)

32.2 (23.5–53.3)

 NN50c

63 (36–142)

63 (32–115)

81 (35–138)

27(11–75)

 pNN50%c

17.6(8.9-41.3)

18 (9–39)

22 (9.6–40.4)

6.3 (2.3–17.4)

Frequency domain

 LF powera

720 (450–1162)

763 (328–1262)

758 (446–2005)

383 (182–740)

 HF powerc

684(273–1268)

498 (278–1035)

487 (206–2048)

208 (63–798)

 LF

56.1 (43.3–62.9)

54.5 (37.9–69.5)

56.7 (46.7–74.5)

63.9 (46.8–75.9)

 HF

43.9 (37.1–56.7)

45.5 (30.5–62.1)

43.3 (25.5–53.3)

36.1 (24.1–53.2)

 Total powera

2659(1397–4528)

2199(1453-6124)

3662 (2232–6380)

1862 (860–3699)

 LF/HFb

1.28 (0.76–1.69)

1.30 (0.71–2.28)

1.18 (.87–2.92)

1.77 (0.88–3.14)

  1. asignificant different in HRV during recovery between highlanders and lowlanders
  2. bsignificant different in highlanders between resting and recovery
  3. csignificant different in lowlanders between resting and recovery
  4. Bold numbers indicate that the values are statistically significant