Alignment of R-R Interval Signals using the Circadian Heart Rate Rhythm

Gayraud, Nathalie Therese Helene ;   Manis, George

Tags Heart rate variabilityCardiovascular signal processing

R-R interval signals that come from different subjects are regularly aligned and averaged according to the horological starting time of the...

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Concomitant Dynamic Changes in Autonomic Nervous System Function and Nasal Airflow Resistance during Allergen Provocation

Seppänen, Tiina Maarit ;   Alho, Olli-Pekka ;   Seppänen, Tapio

Tags Autonomic nervous systemHeart rate variabilityAirflow

Allergic rhinitis is a major chronic respiratory disease which more than 500 million people suffer from around the world. It is considered to be...

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Correlation between Autonomous Function and Left Ventricular Performance after Acute Myocardial Infarction

Cabiddu, Ramona ;   Trimer, Renata ;   Italiano Monteiro, Clara ;   Borghi-Silva, Audrey ;   Trimer, Vitor ;   de Carvalho, Paulo ;   Rocha, Teresa ;   Paredes, Simao ;   Bianchi, Anna Maria ;   Henriques, Jorge

Tags Complexity in cardiovascular or cardiorespiratory signalsHeart rate variabilityCoronary artery disease

Reduced ejection fraction (EF), possibly induced/mediated by autonomic abnormal activation, is one of the most powerful predictors of adverse...

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Statistical Assessment of Performance of Algorithms for Detrending RR Series

Fasano, Antonio ;   Villani, Valeria

Tags Cardiovascular signal processingHeart rate variability

Detrending RR series is a common processing step prior to HRV analysis. Customarily, RR series, which are inherently unevenly sampled, are...

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Towards an Objective Measurement of Emotional Stress: Preliminary Analysis based on Heart Rate Variability

Arza Valdés, Adriana ;   Garzón Rey, Jorge Mario ;   Hemando, Alberto ;   Aguilo, Jordi ;   Bailon, Raquel

Tags Heart rate variabilityTime-frequency, time-scale analysis of cardiovascular variabilityCardiovascular signal processing

This paper presents a study performed in 25 young healthy subjects measuring the evolution of heart rate variability (HRV) indices during...

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