title: Effect of muscle electrical stimulation on electrophysiological parameters of cardiac work in athletes.
abstract: During the period encompassing 10 sessions of the quadriceps femoris muscle electromyostimulation in athletes (n=72), the following cardiac parameters changed significantly: QT-interval dispersion and the incidence of supraventricular and ventricular extrasystoles decreased, while the circadian index increased. No significant changes in the temporal- and frequency-domain parameters of the heart rate were observed, although there was a clear trend to normalization of the disturbed sympathovagal balance in the athletes.
authors.affiliation: Institute of Physical Culture and Athletics, Moscow, Russia. sportcardio@mail.ru
authors.forename: G A
authors.initials: GA
authors.lastname: Khairetdinova
authors.forename: Yu N
authors.initials: YN
authors.lastname: Fedulaev
authors.forename: V V
authors.initials: VV
authors.lastname: Ar'kov
authors.forename: S S
authors.initials: SS
authors.lastname: Pertsov
authors.forename: O N
authors.initials: ON
authors.lastname: Andreeva
mesh_terms: D000328:Adult; D056352:Athletes; D004558:Electric Stimulation / Q000379:methods*; D022062:Electrophysiologic Techniques, Cardiac / Q000379:methods*; D055724:Electrophysiological Phenomena; D004594:Electrophysiology; D005260:Female; D006321:Heart / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D052097:Quadriceps Muscle / Q000502:physiology*; D055815:Young Adult