DYNAMICS OF INDICATORS OF THE LEVEL AND SPEED OF MYOCARDIAL DEFORMATION IN A STRESS TEST BY HEALTHY SUBJECTS

Oleynikov Valentin Elivich, Doctor of medical sciences, professor, head of sub-department of therapeutics, Medical institute, Penza State University, oleynikoff@sura.ru
Galimskaya Vera Alexandrovna, Сandidate of medical sciences, associate professor, sub-department of therapeutics, Medical institute, Penza State University, terapia-pgu@rambler.ru
Donchenko Ivan Andreevich, Рostgraduate student, Medical institute, Penza State University, terapia-pgu@rambler.ru
Glumskov Arthur Borisovich, Intern, sub-department of therapeutics, Medical institute, Penza State University, artur19401988@yandex.ru
Soldatova Tamara Alexandrovna, Doctor, department of cardiology, Penza Regional Clinical Hospital named after N. N. Burdenko, sanych666@yandex.ru

616.12-008.331.1

The purpose of the present research is revealing the dependence of indicators of longitudinal, circular and radial strain, and also deformation rate of myocardium LV in healthy people on frequency of heart rate (НR). The researchers observed 25 practically healthy male volunteers at the age from 18 till 27 years (20,2 ± 3,1 years) with an average HR 70,4 ± 5,6 per min. Longitudinal and circular strain of a myocardium changes against the physical exrciese, mostly in the middle segment. Strain rate is mainly enlarged in a basal segment of a myocardium. Radial strain and strain rate under conditions of the stress-test authentically didn't change.

echocardiography, myocardial strain, strain rate, method X-Strain.