Skip to main content

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+
BeforeAfterBeforeAfterBeforeAfterBeforeAfter
N VLF111012912121011
GainVLF, cm s−1mmHg−10.60 (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−11.3 (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 LF1113151414131112
GainLF, cm s−1mmHg−10.63 (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−11.6 (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, degrees25.6 (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