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Biomedical subjects

A Mátrai

Publications and source records attributed to A Mátrai.

5 recordsLinked to original sources
PubMed1989

[Analysis of the function of the circulatory system and its components based on rheologic viewpoints].

The authors analyse from hemorheological viewpoint the vascular system and the blood, its special circulating medium. The most important anatomical and physiological characteristics are referred to completing them with the presentation of the basic rheophysical parameters and correlations. Factors determining the viscosity of blood are specified and discussed separately. The definition based on literary data according to which the viscosity of blood is greater with lower circulation gradient and lower--in view of the non-Newtonian character of bloodat a higher rate is discussed. The significance of the adaptability of blood cells is emphasized in the determination of the rheological characteristics of blood.

Blood Circulation↗
PubMed1989

[The roots, concept, subject, and history of hemorheology, current tasks and further perspectives].

The authors give a reviewing summary on the origin of hemorrheology and its relationship to basic sciences. Its concept is defined, recognitions and endeavours of this character in the history are analysed and followed up. The names of the scientists whose merit was significant in the creation of rheology-hemorrheology are presented referring briefly to the main points of their activity. The general, international situation of the discipline is outlined, countries leading and determining its development are indicated and the main points of the situation in Hungary are described. The examinational fields of clinical hemorrheology are presented, describing briefly the future directions.

Animals↗
PubMed1977

Investigation of adaptive processes in child and adolescent swimmers. Acid-base parameters of swimmers and weight-lifters.

Acid-base parameters of adolescent swimmers (capacitive sport) and of adult weight-lifters (athletoid sport) were investigated before and after training in the submaximally trained phase of a year-round training period. In swimmers, training induced incompensated metabolic acidosis, which persisted at 10 min after the training. This acidosis showed no correlation to the blood lactate level. In weight-lifters, there was only a slight, compensated posttraining acidosis, which tended to decrease 10 min after the training. The weight-lifters had extremely high posttraining ammonia levels. It might be supposed that ammonia-genesis has a role in the compensation of exercise-induced acidosis in weight-lifters. The differences in acid-base status of swimmers and weight-lifters might be related to the different breathing mechanism needed for the two different sports.

Acid-Base Equilibrium↗