(TKP-26-6/PALY-2021) Támogató: Kulturális és Innovációs Minisztérium Nemzeti Kutatási
Fejlesztési és Innovációs Alap
(TKP2021-EGA)
Szakterületek:
Orvos- és egészségtudomány
(1) Background: Physical activity, altered metabolic parameters, and socio-economic
status may affect electrocardiographic (ECG) parameters in children. However, a direct
comparison of their effects on resting ECG has not yet been performed. (2) Methods:
A total of 139 participants (60 male), aged 10–17 years, were recruited. Resting 1-minute
ECG recordings and clinical and laboratory investigations were obtained, while socio-economic
status and physical activity were assessed using a questionnaire. Associations between
these factors and ECG parameters were analyzed using analysis of covariance (ANCOVA).
(3) Results: Age, sex, metabolic syndrome, and physical activity significantly influenced
the average RR interval (η2 = 0.292, 0.070, 0.078, and 0.070, respectively). Similar
effects were observed on the T_end–P interval. The PR, QRS, QTc, and T_peak–T_end
intervals were moderately influenced by age (η2 = 0.084, 0.056, 0.072, and 0.049,
respectively). QTc was additionally affected by sex (η2 = 0.060). None of the modifiable
factors had any effect on depolarization or repolarization parameters. Socio-economic
status had no significant effect on resting ECG. (4) Conclusions: Physical activity
exerts similar effects on resting ECG in both sexes, while metabolic syndrome is an
independent determinant of several ECG parameters. Further studies are warranted to
clarify the clinical relevance of these findings.
