[Effects of application resistive and flex resistance to breath in training sportsmen].

Research on studying influence of a rate of muscular training in conditions of additional aerodynamic and flex resistance to breath on a level of physical working capacity, aerobic productivity and a functional condition of system of breath is executed. It is shown, that regular muscular training on a background of use of the dosed out breath with increased aerodynamic and flex resistance to respiratory stream and respiratory movements, first of all. provides essential growth of functionalities of the respiratory muscles expressed in authentic increase of power and speed-power parameters, shortening of time of impellent reaction of respiratory muscles.

[Invasion-free respiratory monitoring in thoracal surgery of oncology patients].

The results of intraoperative monitoring in thoracal surgery of 375 oncology patients with lung cancer were analyzed. The dynamic parameters of ventilation and blood gas composition were investigated in patients with uncomplicated anesthetic management and with complicated adequate ventilation. The diagnostic value of the above parameters is defined for optimizing the respiratory support in surgery for lung cancer.

[Changes in mechanical properties of the lungs in thoracic surgery in cancer patients].

Mechanical characteristics of the lungs and time course of their changes at various stages of thoracal surgery were studied in 119 cancer patients. Lung compliance significantly decreased during transfer of the patients into lateral position. The ranges of normal values of lung compliance and aerodynamic resistance at the stage of one-lung ventilation were determined.

[Mechanism of placental detachment in the postnatal period].

Separation of the placenta was examined by the echoscopic and tocographic methods in 62 women who gave birth to healthy full-term babies. The placentas separated spontaneously, in 61 women. The amplitude time characteristics of the after-birth period are presented, and the echoscopic picture of separation of the placenta is described.

[Dynamics of forward fetal movement during labor and its graphic interpretation].

The paper provides echographic++ findings of dynamics of fetal forward movement along the reproductive tract from 88 parturients. It has been found that displacement of the placenta previa was recorded by echography++ when the cervix uteri was 3'36 cm dilated and this continued in accordance with the type revealed (ascending, stepwise, or wave-like). The graphs of fetal head displacement were generally similar to those of increased dilatation of the uterine orifice.

[Contractile activity of the uterus in different variants of cervix dilatation and fetal forward movement during labor].

The biomechanism of labour pains was examined by analysing the amplitude, frequency, and duration of the pains during labours accompanied by arrests in the course of cervical dilatation and fetal forward movement. The forces driving out the fetus from the uterus were shown to be formed of two components: 1) uterine wall muscular layer tension and 2) amniotic fluid hydraulic pressure, the former being of greater importance than the latter.

[Characteristics of cervix dilatation during labor].

Based on the results obtained from studies into the dynamics of cervical dilatation during delivery at term by echoscopic techniques, the author considers if there is a potential biomechanics what is responsible for dilatation of the mouth of the womb and based on the hydraulic cervical tissue distention caused by gauge blood pressure occurring during labour pains. The physiological nature of cervical dilatation features seen during delivery is discussed in terms of the dilatation biomechanics proposed.

[Changes in the thickness of the myometrium during labor].

During labor at term, an ultrasonic technique was used to study changes occurred in myometrium thickness in different uterine portions in 46 females. Immediately after the birth of a child, the most thickness of the myometrium was shown to be in the lower uterine segment; the least, in the uterine fundus and beneath the placenta. Within the third period of the labor, reverse changes occurred when the afterbirth was cast from the uterus.