Skip to main content
Fig. 2 | BMC Neurology

Fig. 2

From: Power spectral analysis of heart rate variability is useful as a screening tool for detecting sympathetic and parasympathetic nervous dysfunctions in Parkinson’s disease

Fig. 2

Correlations between resting LF power and the heart-to-mediastinum (H/M) ratio of 123I-meta-iodobenzylguamidine (MIBG) uptake (A) and correlations between resting HF power and the coefficient variation of R–R intervals (CVRR) (B) in patients with PD. A Significant correlations were found between the H/M ratio and resting LF power (early, r = 0.57, p < 0.05; delayed, r = 0.62, p < 0.05). The dashed line shows the cutoff value for the H/M ratio (2.2). B Significant correlations were found between the CVRR and resting HF power (rest, r = 0.66, p < 0.05; deep breath, r = 0.57, p < 0.05). The dashed line shows the cutoff value for the CVRR (2.0)

Back to article page

BMC Neurology

ISSN: 1471-2377

Contact us