Physiological Changes in QRS Fragmentation in Athletes and Nonathletes without Cardiac Disease DOI Open Access
Georgios A. Christou, María Christou, Konstantinos Christou

et al.

Journal of Clinical Medicine, Journal Year: 2024, Volume and Issue: 13(10), P. 2741 - 2741

Published: May 7, 2024

Background/Objectives: QRS fragmentation has not been linked with increased mortality in individuals without known cardiac disease. We aimed to investigate the physiological determinants of Methods: Study participants were 163 (54 athletes, 109 nonathletes) asymptomatic but was assessed supine position after deep inspiration or standing up and during exercise. The changes evaluated over a median follow-up period 2.3 (0.8–4.9) years. Results: most common lead III (63.0% 61.5% nonathletes), immediately followed by V1 (50.0%) aVF (42.6%) athletes (55.0%) nonathletes. more frequent compared nonathletes (p < 0.001). Among presence could be independently predicted RVOTproxi (right ventricular outflow tract proximal diameter indexed body surface area) V1, resulted disappearance frequently (100% vs. 20%, p = 0.003). Deep II associated mass index (BMI) at baseline, appearance end greater training age 0.034). reduction BMI 0.008). Conclusions: characteristic feature which RVOTproxi. persistence serve as specific marker exercise-training-related adaptation. leads frontal plane influenced respiration phase.

Language: Английский

Determinants of Longitudinal Changes in Exercise Blood Pressure in a Population of Young Athletes: The Role of BMI DOI Creative Commons
Francesca Battista, Marco Vecchiato,

Kiril Chernis

et al.

Journal of Cardiovascular Development and Disease, Journal Year: 2025, Volume and Issue: 12(2), P. 74 - 74

Published: Feb. 15, 2025

Higher exercise blood pressure in adults correlates with many cardiometabolic markers. The aim of this study was to investigate the main determinants longitudinal variations young athletes. A retrospective conducted on adolescent athletes who underwent at least two sport-related pre-participation screening visits, including testing a standardized incremental ramp protocol treadmill. Blood assessed rest (SBPrest), 3rd minute (SBP3min), and peak (SBPpeak). Predictors response (i.e., respective changes vs. baseline (Δ)) were determined by multivariate regression models after adjustment for age, sex, follow-up duration, related SBP values, characteristics sport, ΔBMI. total 351 (mean age 13 ± 2 years, 54% boys, average duration 3.4 2.2 years) enrolled. BMI increased 1.5 1.8 kg/m2 (p < 0.001) during follow-up. At baseline, mean SBPrest 103 14 mmHg, SBP3min 124 18 SBPpeak 154 23 mmHg. significant between-visit increase (ΔSBPrest 7.0 17.4 mmHg; p 0.001), ΔSBP3min (4.8 11 ΔSBPpeak (11.7 24 observed. significantly predicted male sex 0.01), ΔBMI number practiced sports 0.05), whereas positively gender 0.01) negatively resting heart rate 0.01). In logistic model, only independent determinant passing from lower an upper quartile while moving higher 0.001). Increase development are pressure, both light maximal intensity, population

Language: Английский

Citations

0
Best Paper of the Year 2023 DOI Creative Commons
Craig Stolen, Enrique Lara‐Pezzi

Journal of Cardiovascular Translational Research, Journal Year: 2024, Volume and Issue: 17(1), P. 1 - 2

Published: Feb. 1, 2024

Language: Английский

Citations

1
Prevalence and determinants of low QRS voltages and QRS fragmentation in children and adolescents undergoing sports pre-participation screening DOI Creative Commons
Francesca Graziano,

Oscar Edoardo Genta,

L Manfrin

et al.

European Journal of Preventive Cardiology, Journal Year: 2024, Volume and Issue: 31(12), P. 1535 - 1542

Published: May 22, 2024

Abstract Aims Low QRS voltages (LQRSV) in limb leads and fragmentation (FQRS) are possible electrocardiographic signs of myocardial fibrosis cardiomyopathy, but they not listed current criteria for interpreting athlete’s electrocardiogram (ECG). We investigated the prevalence determinants LQRSV FQRS a cohort young apparently healthy athletes undergoing pre-participation screening (PPS). Methods results analysed consecutive series 2140 ECG obtained during PPS (mean age 12.5 ± 2.6 years, 7–18-year-old, 49% males). The peak-to-peak voltage was measured all leads, were defined when maximum value &lt;0.5 mV. Fragmented morphologies grouped into five patterns. Lead aVR considered. Maximum 1.4 0.4 mV, similar between younger older athletes, significantly lower females than males (1.35 0.38 mV vs. 1.45 0.42 mV; P &lt; 0.001). There weak correlation maximal body mass index (BMI), with type sport or training load. Only (0.2%) individuals showed LQRSV. At least one fragmented complex identified 831 (39%) excluding rSr′ pattern V1–V2, only 10 (0.5%) ≥2 contiguous leads. They those without FQRS, did differ terms gender, BMI, sport, Conclusion V1–V2 rare related to intensity activity. Therefore, may require additional testing rule out an underlying disease particularly other abnormalities present.

Language: Английский

Citations

1
Physiological Changes in QRS Fragmentation in Athletes and Nonathletes without Cardiac Disease DOI Open Access
Georgios A. Christou, María Christou, Konstantinos Christou

et al.

Journal of Clinical Medicine, Journal Year: 2024, Volume and Issue: 13(10), P. 2741 - 2741

Published: May 7, 2024

Background/Objectives: QRS fragmentation has not been linked with increased mortality in individuals without known cardiac disease. We aimed to investigate the physiological determinants of Methods: Study participants were 163 (54 athletes, 109 nonathletes) asymptomatic but was assessed supine position after deep inspiration or standing up and during exercise. The changes evaluated over a median follow-up period 2.3 (0.8–4.9) years. Results: most common lead III (63.0% 61.5% nonathletes), immediately followed by V1 (50.0%) aVF (42.6%) athletes (55.0%) nonathletes. more frequent compared nonathletes (p < 0.001). Among presence could be independently predicted RVOTproxi (right ventricular outflow tract proximal diameter indexed body surface area) V1, resulted disappearance frequently (100% vs. 20%, p = 0.003). Deep II associated mass index (BMI) at baseline, appearance end greater training age 0.034). reduction BMI 0.008). Conclusions: characteristic feature which RVOTproxi. persistence serve as specific marker exercise-training-related adaptation. leads frontal plane influenced respiration phase.

Language: Английский

Citations

0