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|Title:||Statistics and graphs for heart rate variability: pNN50 or pNN20?|
|Citation:||Physiological Measurement, 2003; 24(3):N9-N14|
|Publisher:||IOP Publishing Ltd|
|Abstract:||Two measures of heart rate variability, pNN50 and pNN20, are compared. A non-linear transformation of these measures is proposed, that is helpful in understanding their interrelationship. Provided a valid statistical test is employed, results from analysing pNN20 are likely to be equivalent to those from analysing pNN50. Arguments recently made by Mietus et al (2002 Heart88 378-80) against the commonly used pNN50 are unconvincing.|
|Keywords:||Parasympathetic Nervous System; Humans; Data Interpretation, Statistical; Heart Rate; Nonlinear Dynamics; Models, Cardiovascular; Models, Neurological|
|Description:||© Institute of Physics Publishing|
|Appears in Collections:||Centre for Automotive Safety Research publications|
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