[Balance of iron and copper in cadets of military school during physical exercise and next-day rest at different times of the year].

According to examination, with the help of emission spectrum analysis method, of 24 cadets-athletes of different specialization it was determined that during physical exercise in summer and in winter loss of ferrum and copper with excrements exceeded the intake if these microelements with food. The next day rise of impaction of microelements and decrease of excretion. But despite the positive balance of ferrum and copper, spend of these microelements during physical exercise wasn't compensated for the day of rest. That is why there is a possibility of microelement deficit.

[Vitamin and mineral supplements in the diet of military personnel: effect on the balance of iron, copper and manganese, immune reactivity and physical work-capacity].

Conducted with the participation of 50 students of military educational study the effect of various vitamin and mineral complexes for the provision by the body naturally iron, copper and manganese on the immune and physical status. Found that diets enriched BMV was accompanied by a significant delay in the micro-elements, mainly iron, which indicates a deficiency of these bioelements in chickens Santo during the summer. Under the influence of vitamin-mineral complexes significantly increased rates of natural and specific immunity. As the delay increases significantly increased iron medical indicators of immunological reaction efficiency and physical performance.

[The specific features of copper and manganese metabolism in the use of iron-containing preparations].

AIM: To comparatively evaluate the efficiency of preventive treatment with various iron preparations on copper, manganese, and iron metabolic features in adult athletes. SUBJECTS AND METHODS: Forty adult highly qualified sambo wrestlers were examined and divided into 4 groups of 10 persons in each. Group 1 athletes took iron-containing Sorbifer Durules in combination with ascorbic acid; Group 2 received Ferro Gradumet Vitamin C; Group 3 had Hemofer and ascorbic acid; Group 4 took ascorbic acid tablets. The latter group served as a control. Blood samples (15-20 ml) to be tested were taken at the beginning and end of 2-week use of iron preparations. The daily balance of iron, copper, and manganese was estimated following 7-day intake of these preparations. RESULTS: The use of iron-containing preparations in combination with ascorbic acid was ascertained to be accompanied by an increment in the plasma concentration of iron and blood corpuscles, indicating an increased need for this biotic and its deficiency in athletes. When the dose of iron was increased in the iron preparations, there was a substantial rise in the excretion of copper, manganese in particular, through the gastrointestinal tract and kidney and a negative balance of these trace elements in the body. CONCLUSION: Dietary addition of foods containing large amounts of ferrous iron, copper, and manganese is indicated for athletes exposed to higher intensity exercises.

[Assessment of actual nutrition and immunological responsiveness in female students].

Questionnaire survey of 127 female medical students from a study group indicated that the dietary levels of proteins, particularly animal ones, as well as fats, carbohydrates, vitamins (C, B1, B2, and B6), and trace elements (potassium, calcium, magnesium, phosphorus, iron, copper, and manganese) was much lower in spring than in autumn and they did not correspond to the recommended physiological requirements for these nutrients. Examining the immunological responsiveness in the female students revealed seasonal variations of some cellular and humoral immunological parameters. The reduction in the level of T lymphocytes of serum immunoglobulins (mainly immunoglobulins G) and in the number of circulating immune complexes in spring as compared with autumn was associated with the significant increase of the relative and absolute counts of B lymphocytes.

[Iron provision and immunological responsiveness in athletic students in different seasons].

The studies of 39 highly skilled sambo wrestlers and 60 medical students from a study group ascertained that the dietary levels of iron in the students going in for sports was close to the physiological requirements in winter; it was twice less than the normal values. The daily balance of iron was negative. The trend of blood iron levels was pronouncedly seasonal. The maximum concentrations of iron in plasma and formed blood elements were noted in all the students in autumn and the minimum ones were observed in spring and especially summer months. At almost all stages of an all-year-round follow-up, the levels of iron in the plasma was lower while those in the formed elements were higher in the sportsmen than those in the untrained students. The immunological responsiveness changes largely depended on the season rather than the students' motor activity. At almost all the stages of the follow-up, the concentrations of T and B lymphocytes, phagocytic parameters, and the number of circulating immune complexes were significantly higher in highly skilled sportsmen than in the untrained students.

[Dynamics of some indices of immune defense and physical fitness in school children]. / Dinamika nekotorei pokazatelei immunnoi zashchity i fizicheskoi rabotosposobnosti u shkol'nikov.

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.