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Table 2 Cerebral autoregulation parameters per condition and time point

From: The short-term effects of sedentary behaviour on cerebral hemodynamics and cognitive performance in older adults: a cross-over design on the potential impact of mental and/or physical activity

 

SIT-

BREAK-

SIT+

BREAK+

Before

After

Before

After

Before

After

Before

After

N VLF

11

10

12

9

12

12

10

11

GainVLF, cm s−1mmHg−1

0.60 (0.34)

0.43 (0.10)

0.54 (0.13)

0.49 (0.13)

0.47 (0.12)

0.47 (0.21)

0.50 (0.19)

0.46 (0.14)

Gainnorm-VLF, % mmHg−1

1.3 (0.61)

1.1 (0.26)

1.3 (0.29)

1.1 (0.35)

1.2 (0.36)

1.1 (0.34)

1.2 (0.29)

1.2 (0.41)

PhaseVLF, degrees*

42.8 (14.6)

54.4 (16.2)

50.8 (19.2)

61.0 (16.4)

43.7 (17.6)

54.7 (18.7)

45.0 (14.6)

51.5 (14.2)

N LF

11

13

15

14

14

13

11

12

GainLF, cm s−1mmHg−1

0.63 (0.29)

0.53 (0.16)

0.70 (0.19)

0.68 (0.19)

0.67 (0.26)

0.60 (0.23)

0.63 (0.28)

0.60 (0.19)

Gainnorm-LF, % mmHg−1

1.6 (0.59)

1.4 (0.34)

1.6 (0.34)

1.6 (0.38)

1.6 (0.37)

1.6 (0.43)

1.5 (0.40)

1.4 (0.43)

PhaseLF, degrees

25.6 (8.0)

32.7 (11.0)

29.7 (9.2)

25.8 (11.1)

31.6 (12.5)

28.4 (13.1)

33.0 (12.1)

27.9 (14.4)

  1. Values represent the mean (SD). Abbreviations: VLF very-low-frequency, LF low-frequency, norm normalised, N number of participants. *Phase of the VLF increased significantly after three hours (11.0 (3.52;18.46), P = 0.01) in all conditions