Symbolic heart rate transition motifs during nocturnal sleep are associated with diabetic complications in type 2 diabetes
Fig 2
Comparison of frequency-based heart rate variability (HRV) component power between daytime and sleep.
Bars represent the mean frequency prevalence of the very low frequency power (VLFp), low frequency power (LFp), and high frequency power (HFp) components during day (blue) and sleep (orange). Error bars indicate the standard error of the mean. There is a significant increase in HFp during sleep compared to daytime (p = 0.012), while no significant differences are noted in LFp (p = 0.860) or VLFp components (p = 0.400).