The Dynamics of the Functional Characteristics of Red Blood Cells Under Regular Physical Exertion

Valery P. Kartashev¹, Alexander S. Makhov²*, Alexander V. Kornev¹, Alexey I. Seselkin¹ and Mikhail N. Komarov¹

¹Department of Adaptive Physical Culture and Recreation, Russian State Social University, 129226, Moscow, Russia.

²Department of Theory and Methods of Physical Culture and Sports, Russian State Social University, 129226, Moscow, Russia.

Corresponding author E-mail: svetlanazsyu@mail.ru

Abstract: The presence of unclear moments in the dynamics of erythrocyte catalase activity under physical exertion in early postnatal ontogenesis prompted the conduct of this study.  A total of 32 rats of thirteen days old were examined (immediately after opening the eyes).  Every day from 13 to 60 days of life they were subjected to stressful effects in the form of forced swimming, at a water temperature of about 32º C. 30 intact pups of the same age served as control.  Blood samples from animals were taken from the tail for 13, 15, 21, 30, and 60 days of life.  Erythrocyte count and catalase activity were evaluated, which were expressed by the value of the catalase index.  Under stressful conditions in animals in early postnatal ontogenesis, a gradual increase in the concentration of red blood cells was observed with a decrease in the catalase index.  Increased erythropoiesis was observed in experimental animals, starting from day 30, was associated with the maturation of their hypothalamic-pituitary-adrinal system and the beginning of its antistress work.  A decrease in catalase activity against the background of an increase in the number of red blood cells due to physical activity in the second month of life of rats should be considered as a marker of adaptation of their body to physical activity.

Keywords: Physical activity; Postnatal ontogenesis; Red blood cells; Rats,

[ HTML Full Text]

Back to TOC