Fig. 2.

Graphical illustration of peri-periodic limb movements in sleep (PLMS) fluctuations of the studied parameters. a Cardiovascular parameters: significant fluctuations are present for systolic blood pressure (SBP) and heart rate (HR) in the PLMS-related epochs (solid blue and red lines), while no significant fluctuations are present for diastolic blood pressure (DBP, green solid line) or for periods of undisturbed sleep (dashed lines). Stars indicate epochs that differed significantly from all other epochs following Tukey’s multiple comparisons tests. b Electroencephalography (EEG) parameters: A significant increase in alpha + beta power is noticeable directly after the PLMS event (blue solid line, star), without significant fluctuations in delta power (purple solid line), and for periods of undisturbed sleep