Department of Pediatric Cardiology and Congenital Heart Disease, Medical University of Gdańsk, Dębinki Street 7, 80-952 Gdańsk, Poland.
Department of Preventive Medicine and Education, Medical University of Gdańsk, Dębinki Street 7, 80-952 Gdańsk, Poland.
Int J Environ Res Public Health. 2022 Jan 5;19(1):566. doi: 10.3390/ijerph19010566.
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.
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.
Respiratory sinus arrhythmia was recognized in 43% of the participants. Subjects with sinus arrhythmia had lower heart rate ( < 0.001), weight ( = 0.009), BMI ( = 0.005) and systolic ( = 0.018) and diastolic ( = 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.
Lower prevalence of respiratory sinus arrhythmia among children with overweight and obesity is a result of higher resting heart rate observed in this population.
本研究旨在探讨儿童人体测量学指标对临床观察到的呼吸窦性心律失常程度的影响。
在一项队列研究中，对来自单个城镇的 626 名健康儿童（52%为男性）进行了 12 导联心电图检查，并测量了身高、体重和血压。从 RR 间期的半自动测量中得出呼吸窦性心律失常指数（pvRSA、RMSSD、RMSSDc）。比较心率有节律和呼吸窦性心律失常的受试者之间的身高、体重、BMI、血压以及腰围和臀围，并研究窦性心律失常指数与人体测量学之间的相关性。
43%的参与者出现了呼吸窦性心律失常。窦性心律失常患者的心率（<0.001）、体重（=0.009）、BMI（=0.005）、收缩压（=0.018）和舒张压（=0.004）均较低。心率与窦性心律失常指数之间存在重要的负相关（pvRSA 的 r 值为-0.52，RMSSD 的 r 值为-0.58），但与人体测量学指标无关。
超重和肥胖儿童呼吸窦性心律失常的患病率较低，是由于该人群静息心率较高所致。
