Statistics and graphs for heart rate variability: pNN50 or pNN20?

T. P. Hutchinson

doi:10.1088/0967-3334/24/3/401

Statistics and graphs for heart rate variability: pNN50 or pNN20?

T. P. Hutchinson

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

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 Heart 88 378–80) against the commonly used pNN50 are unconvincing.

Original language	English
Pages (from-to)	N9-N14
Number of pages	6
Journal	Physiological Measurement
Volume	24
Issue number	3
DOIs	https://doi.org/10.1088/0967-3334/24/3/401
Publication status	Published - 2003

Keywords

heart rate variability
cardiac parasympatheticmodulation
pNN50
statistical testing

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10.1088/0967-3334/24/3/401

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title = "Statistics and graphs for heart rate variability: pNN50 or pNN20?",

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 Heart 88 378–80) against the commonly used pNN50 are unconvincing.",

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AB - 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 Heart 88 378–80) against the commonly used pNN50 are unconvincing.

KW - heart rate variability

KW - cardiac parasympatheticmodulation

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KW - statistical testing

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DO - 10.1088/0967-3334/24/3/401

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Statistics and graphs for heart rate variability: pNN50 or pNN20?

Abstract

Keywords

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