Table 1 Measures of heart rate variability. All values are mean ± SD

EYT-A

CE1-A

CE2-A

Rest-A

RR [ms]***

739 ± 82

731 ± 73

744 ± 97

847 ± 109^a,b,c

SDNN [ms]***

61 ± 25

54 ± 22

44 ± 16^a,d

67 ± 36

VLF [ln ms²]

6.68 ± 0.67

6.62 ± 0.80

6.42 ± 0.67

6.92 ± 0.75

LF [ln ms²]***

7.31 ± 0.84^b,c,d

6.98 ± 0.90

6.52 ± 0.87

6.94 ± 1.09

HF [ln ms²]**

5.51 ± 1.00

5.44 ± 0.90

5.04 ± 0.88

6.17 ± 1.08^b,c

Peak osc. VLF [Hz]**

0.019 ± 0.008

0.028 ± 0.013^c,d

0.013 ± 0.008

0.016 ± 0.011

Peak osc. LF [Hz]

0.081 ± 0.020

0.078 ± 0.027

0.079 ± 0.020

0.090 ± 0.025

Peak osc. HF [Hz]*

0.178 ± 0.037^c

0.208 ± 0.063

0.238 ± 0.081

0.226 ± 0.062

EYT-B

CE1-B

CE2-B

Rest-B

RR [ms]***

774 ± 100^c

730 ± 96

620 ± 117

878 ± 109^b,c

SDNN [ms]***

138 ± 43

118 ± 46

33 ± 14^a,b,d

73 ± 36^a

VLF [ln ms²]***

9.32 ± 0.82^b,c,d

6.31 ± 0.75

6.04 ± 0.80

7.05 ± 1.39

LF [ln ms²]***

7.91 ± 1.00

8.98 ± 1.12^d

5.47 ± 1.29^a,b

6.97 ± 1.07

HF [ln ms²]***

6.68 ± 1.04

6.56 ± 1.05

3.82 ± 1.39^a,b,d

6.39 ± 1.07

Peak osc. VLF [Hz]***

0.026 ± 0.004^c,d

0.018 ± 0.013

0.008 ± 0.007

0.012 ± 0.009

Peak osc. LF [Hz]**

0.058 ± 0.021^d

0.070 ± 0.011

0.072 ± 0.025

0.090 ± 0.030

Peak osc. HF [Hz]**

0.185 ± 0.048

0.185 ± 0.041

0.206 ± 0.075

0.236 ± 0.058^a,c