Is there a disassociation of ventilatory and electromyographic thresholds in patients with heart disease during a graded cycling exercise? (original) (raw)
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Electro-echocardiographic correlation in high-performance athletes
Archivos de Medicina del Deporte
Background: Functional and structural cardiac adaptations are generated by sustained physical training. The objective of our investigation was to evaluate the association in electrocardiographic and echocardiographic findings in a population of high-performance athletes. Material and method: 30 male athletes (10 water polo players, 10 triathlonists and 10 swimmers), ages 18 to 40 years old, training 20 to 30 hours per week for at least one year, were evaluated. Clinical, electrocardiographic (ECG) and echocardiographic examination was performed on each of them at Instituto Vozzi. Results: Echocardiographic results showed that the mean septal thickness, the mass index of the left ventricle (LV), the anteroposterior diameter and the area of the left atrium (LA), the area of the right atrium (RA) and the base of the right ventricle (RV) were found above normal values for the general population. None of the athletes ECGs presented LA, RA or RV enlargement. Nine of 30 (30%) presented sig...
Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2015
Regular physical exercise results in physiological cardiovascular changes. Athletes may demonstrate electrocardiographic changes that can also be seen in certain cardiomyopathies such as arrhythmogenic right-ventricular cardiomyopathy (ARVC). The aim of this study was to assess the prevalence of one such electrocardiographic characteristic, the abnormal signal-averaged ECG (SAECG), and to assess the correlation between SAECG parameters and echocardiographic parameters in athletes participating in sporting disciplines with combined strength and endurance components. We evaluated 24 elite athletes and 27 amateur athletes participating in combined high dynamic and high static (HDHS) sports, using an ECG, SAECG, and a transthoracic echocardiogram. The SAECG was regarded as positive for late potentials if one out of three parameters was abnormal. Prolongation of the filtered QRS duration (fQRS) was present in all of the elite athletes, compared with 74.1% of the amateur athletes (P = 0.0...
Echocardiographic parameters in athletes of different sports
Journal of sports science & medicine, 2008
Competitive athletics is often associated with moderate left ventricular (LV) hypertrophy, and it has been hypothesized that training mode and type of exercise modulates long-term cardiac adaptation. The purpose of the study was to compare cardiac structure and function among athletes of various sports and sedentary controls. Standard transthoracic two-dimensional M-mode and Doppler echocardiography was performed at rest in Caucasian male canoe/kayak paddlers (n = 9), long distance runners (LDR, n = 18), middle distance runners (MDR, n = 17), basketball players (BP, n = 31), road cyclists (n = 8), swimmers (n = 10), strength/power athletes (n = 9) of similar age (range, 15 to 31 yrs), training experience (4 to 9 years), and age-matched healthy male sedentary controls (n = 15). Absolute interventricular septum (IVS) thickness and LV wall thickness, but not LV diameter, were greater in athletes than sedentary controls. Left ventricular mass of all athletes but relative wall thickness ...