Examinations of 22 young unarmed self-defence sportsmen and 18 untrained schoolchildren indicated that the indices of nonspecific immunity defence--serum complement and lysozyme--depended on a season rather than on a motor activity regimen. Changes in the concentrations of hemoglobin and plasma iron were also obviously seasonal. These indices were the least in spring and winter as compared to autumn and winter. Blood iron levels were higher in the young sportsmen than in the untrained schoolchildren at all stages of a follow-up. There was a direct relationship between direct and indirect parameters of iron exchange, physical fitness, and nonspecific protection factors. In all teenagers, the activity of serum lysozyme and complement was directly related to the plasma level of iron and the school children's physical fitness was closely correlated with plasma and blood cell iron concentrations.

Adolescent↗

PubMedDate not supplied

[The effect of a rapid decrease in body weight and enriching rations with microelements on various functions of the athlete's body].

In athletes of high skills, a 5-percent decline of the body weight over 5 days by means of restricting water, fats and carbohydrates consumption was followed by reduced activity of ceruloplasmin and lysozyme of blood serum. After sauna attendance with a purpose of lessening the body weight, there was, along with a certain rise of the immunologic responsiveness of the body, a decrease in peroxidase activity, in the content of iron and copper in blood cells in the presence of appreciable losses of trace elements with sweat. Enrichment of the athletes' diets with trace elements combined with vitamins and bendasole hydrochloride in the course of sauna-induced body weight lessening not only prevented the negative alterations but also exerted a beneficial action on the function of certain body systems.

Adult↗