Figure 4From: Comparison of two systems for long-term heart rate variability monitoring in free-living conditions - a pilot study Standardized differences of (Actiheart - Holter) HRV measures versus the mean value; a) ln(TP); b) ln(LFP); c) ln(HFP); d) ln(LF/HF); e) LFn.u.; f) HFn.u.Back to article page