Anthropometric Determinants of Respiratory Sinus Arrhythmia in Children

Paulina Lubocka, Robert Sabiniewicz, Klaudia Suligowska and Tomasz Zdrojewski
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Paulina Lubocka: Department of Pediatric Cardiology and Congenital Heart Disease, Medical University of Gdańsk, Dębinki Street 7, 80-952 Gdańsk, Poland
Robert Sabiniewicz: Department of Pediatric Cardiology and Congenital Heart Disease, Medical University of Gdańsk, Dębinki Street 7, 80-952 Gdańsk, Poland
Klaudia Suligowska: Department of Preventive Medicine and Education, Medical University of Gdańsk, Dębinki Street 7, 80-952 Gdańsk, Poland
Tomasz Zdrojewski: Department of Preventive Medicine and Education, Medical University of Gdańsk, Dębinki Street 7, 80-952 Gdańsk, Poland

IJERPH, 2022, vol. 19, issue 1, 1-7

Abstract: Background: The study was conducted to investigate the implications of anthropometry in school-aged children on the degree of respiratory sinus arrhythmia observed in clinical settings. Methods: In a cohort study, 626 healthy children (52% male) aged 10.8 ± 0.5 years attending primary school in a single town underwent a 12-lead electrocardiogram coupled with measurements of height, weight and blood pressure. Indices of respiratory sinus arrhythmia (pvRSA, RMSSD, RMSSDc) were derived from semi-automatic measurements of RR intervals. Height, weight, BMI, blood pressure as well as waist and hip circumferences were compared between subjects with rhythmic heart rate and respiratory sinus arrhythmia, and correlations between indices of sinus arrhythmia and anthropometry were investigated. Results: Respiratory sinus arrhythmia was recognized in 43% of the participants. Subjects with sinus arrhythmia had lower heart rate ( p < 0.001), weight ( p = 0.009), BMI ( p = 0.005) and systolic ( p = 0.018) and diastolic ( p = 0.004) blood pressure. There were important inverse correlations of heart rate and indices of sinus arrhythmia (r = −0.52 for pvRSA and r = −0.58 for RMSSD), but not the anthropometry. Conclusion: Lower prevalence of respiratory sinus arrhythmia among children with overweight and obesity is a result of higher resting heart rate observed in this population.

Keywords: cardiology; human development; electrocardiography; physiology (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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