[Microvolt T-Wave Alternans in Adolescent Elite Athletes]
V V Komolyatova1, L M Makarov1, N N Fedina1
1Center for Syncope and Arrhythmias in Children and Adolescents of Federal Medico-Biology Agency of Russia, Moskvorechie str. 20, 115409 Moscow, Russia.
Abstract:
Microvolt T-wave alternans (MTA) is one of markers of electrical myocardial instability.
Study Aim:
to elucidate normal range of MTA parameters during bicycle exercise test (ET) in adolescent elite athletes.
Material And Methods:
We examined 500 athletes aged 9-18 (mean 16.1+/-2.2) years members of national teams of 27 kinds of sport. There were 333 females with mean age 16.0+/-1.01 years and 167 males with mean age 16.3+/-1.4. All athletes underwent ECG registration in clino- and ortho- positions and bicycle ET with automatic analysis.
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