ŠIŠÁKOVÁ, Martina, Kateřina HELÁNOVÁ, Katerina HNATKOVA, Irena ANDRŠOVÁ, Tomáš NOVOTNÝ and Marek MALÍK. Speed of heart rate changes during postural provocations in children and adolescents. Scientific Reports. London: NATURE RESEARCH, 2024, vol. 14, No 1, p. 1-19. ISSN 2045-2322. Available from: https://dx.doi.org/10.1038/s41598-024-62000-7.
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Basic information
Original name Speed of heart rate changes during postural provocations in children and adolescents
Authors ŠIŠÁKOVÁ, Martina (203 Czech Republic, belonging to the institution), Kateřina HELÁNOVÁ (203 Czech Republic, belonging to the institution), Katerina HNATKOVA (203 Czech Republic), Irena ANDRŠOVÁ (203 Czech Republic, belonging to the institution), Tomáš NOVOTNÝ (203 Czech Republic, belonging to the institution) and Marek MALÍK (203 Czech Republic, belonging to the institution).
Edition Scientific Reports, London, NATURE RESEARCH, 2024, 2045-2322.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30201 Cardiac and Cardiovascular systems
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 4.600 in 2022
Organization unit Faculty of Medicine
Doi http://dx.doi.org/10.1038/s41598-024-62000-7
UT WoS 001233422900051
Keywords in English heart rate; speed; children; adolescents
Tags 14110211, rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Tereza Miškechová, učo 341652. Changed: 15/8/2024 12:28.
Abstract
Heart rate is under constant autonomic influence but the development of the influence in children is not fully understood. Continuous electrocardiograms were obtained in 1045 healthy school-age children (550 females) during postural provocations with body position changes between supine, sitting, standing, supine, standing, sitting and supine (in this order), 10 min in each position with position changes within 20 s. Heart rate was measured in each position and speed of heart rate changes between positions were assessed by regressions of rates versus timing of individual cardiac cycles. Supine heart rate was gradually decreasing with age: 82.32 +/- 9.92, 74.33 +/- 9.79, 67.43 +/- 9.45 beats per minute (bpm) in tertile age groups < 11, 11-15, > 15 years, respectively (p < 0.0001), with no significant sex difference. Averaged speed of heart rate changes differed little between sexes and age groups but was significantly faster during rate deceleration than acceleration (e.g., supine <-> standing: 2.99 +/- 1.02 vs. 2.57 +/- 0.68 bpm/s, p < 0.0001). The study suggests that in children, vagal heart rate control does not noticeably change between ages of approximately 6-19 years. The gradual resting heart rate decrease during childhood and adolescence is likely caused by lowering of cardiac sympathetic influence from sympathetic overdrive in small children to adult-like sympatho-vagal balance in older adolescents.
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