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Table 3 Heart rate variability indices at baseline and during session

From: Feasibility and safety of virtual-reality-based early neurocognitive stimulation in critically ill patients

 

Session 1

p

Session 2

p

Session 3

p

Baseline

Session

Baseline

Session

Baseline

Session

LFn, Md (IQR)

3.87 × 10−5 (2.08 × 10−4)

3.02 × 10−5 (8.64 × 10−5)

0.02

7.44 × 10−5 (4.68 × 10−4)

6.91 × 10−5 (3.79 × 10−4)

0.01

9.17 × 10−5 (5.31 × 10−4)

6.74 × 10−5 (3.85 × 10−4)

0.23

HF, Md (IQR)

1.63 × 10−3 (1.64 × 10−1)

6.48 × 10−5 (2.31 × 10−1)

0.65

2.84 × 10−5 (5.17 × 10−5)

2.64 × 10−5 (2.05 × 10−4)

0.03

6.94 × 10−5 (1.21 × 10−3)

6.19 × 10−5 (8.71 × 10−4)

0.11

Total, Md (IQR)

2.88 × 10−3 (1.64 × 10−1)

2.25 × 10−4 (2.32 × 10−1)

0.38

9.85 × 10−5 (4.31 × 10−4)

9.81 × 10−5 (6.43 × 10−4)

0.01

2.44 × 10−4 (1.46 × 10−3)

1.08 × 10−4 (2.26 × 10−3)

0.02

  1. LFn power in low-frequency band expressed in normalized units, HF power in high-frequency band expressed in adimensional units, Total total power expressed in adimensional units, Md median, IQR interquartile range
  2. p values for nonparametric Wilcoxon signed-rank test