Introduction. The modern educational process is characterized by an increase in the educational load, the use of teaching aids, which are not provided for in the regulatory and methodological documents. Violation of the hygienic principles of organizing the education of children at school is the basis for the development of somatic pathology. The aim of the study: hygienic assessment of the educational process in schools with various training programs. Materials and methods. The subject of the research is the organization of the educational process of the first, second and third levels of education in schools with in-depth study of the subjects of the physical and mathematical cycle (Secondary School of Physics and Mathematics) and a typical Secondary School. The questionnaire contained questions for the evaluation of the educational process on the factors “Complexity”, “Time”, “Additional load”. A comparative assessment of the compliance of the educational process in the secondary school of the FMC and the secondary school with the requirements of Sanitary Regulations and Norms (SanPiN) 2.4.2.2821-10 was carried out. Results. In secondary school of Physics and Mathematics, the intensity index of the load by the factor “Difficulty” was 1.8 times more and the ration of students with a high intensity of the educational process by the factor “Time” exceeded by 3 times if compared to the secondary school, and. Every fourth school student of specialized classes attended 2-3 additional education institutions. The shortage of training rooms reached 32%. Established violations in the organization of changes and breaks between shifts, load distribution during the week. The total weekly educational load at the first level of education exceeded the standard values by 20%. The total weekly workload during training at the second and third levels of education in secondary school Physics and Mathematics exceeded indices of secondary school by 1.3-1.4 times. Discussion. When introducing new specialized programs, the actual organization of the educational process does not meet sanitary requirements, which can lead to fatigue and the development of profound and lasting changes in the body of schoolchildren. Conclusion. In the school with in-depth study of subjects, the educational process is more intense. As part of the control and supervision activities in general education organizations of the innovative type, it is necessary to pay special attention to meeting the requirements of section X of Sanitary Regulations and Norms (SanPiN 2.4.2.2821-10).
Introduction. Cognitive disorders in children reduce their social abilities and abilities to learn; therefore, correct diagnostics and prevention of such disorders is a pressing medical and social issue. Materials and methods. The test group was made of two hundred sixty eight 4-7 years children lived and attended preschool children facilities in a zone exposed to emissions from a non-ferrous metallurgic enterprise. The reference group included 97 unexposed children of the same age. We analyzed ambient air quality on both territories. Cognitive processes were estimated by using a series of tests. Laboratory tests were aimed at estimating peroxidation-antioxidant balance, levels of neuromediators and neurotrophic factors in blood serum. Results. The children from the test group had chemicals in their blood and urine in concentrations being both higher than the reference values and those detected in the reference group. Thus, manganese contents in their blood were by 1.3 times higher and aluminum contents in urine were by 1.7-2.2 times higher (p<0.001). Tests applied to estimate development of perception, logical thinking, attention and sensorimotor coordination, revealed that the exposed children were by 1.2-2.0 times less efficient in doing them than their counterparts from the reference group (p = 0.001-0.034). We established a relationship between likelihood of poorer perception and thinking and contents of manganese and aluminum in biological media (R2 = 0.28-0.33). The children in the test group had by 1.2-1.5 times higher contents of malonic dialdehyde (25% contributed by aluminum and 31% contributed by manganese) and lipid peroxides (71% contributed by aluminum) in blood plasma. Antioxidant activity of blood plasma was by 1.2 times lower in the test group, nurotropin-3 contents were higher (13% contributed by manganese) and neuron-specific enolase in blood serum tended to decrease (58% contributed by aluminum). Limitations. Age-related limitations concerning the applied series of tests. Conclusion. Poorer perception and logical thinking, intensified lipid peroxidation and impaired balance of neurotrophic factors are target indicators necessary when developing relevant medical and preventive activities for children in a zone exposed to a non-ferrous metallurgic enterprise.
Introduction. Training in the cadet corps involves an increase in physical activity against a background of high informatization, which affects the autonomic nervous system’s functional capabilities and adaptation to stress. Materials and methods. The observation group consisted of 74 male students of the Cadet Corps (CC). The comparison group consisted of 26 boys aged 10-13 years who studied in a public secondary school (PSS). To evaluate the mode of physical activity, nutritional status, fitness, physical performance the authors performed bioimpedance analysis of body composition. The assessment of the vegetative status was carried out on the basis of the results of cardiointervalography with an active clinoorthostatic test. Results. Analysis of the personal data showed a great commitment to sports among the CC students. Cadets showed significantly higher values of the phase angle, active cellular and musculoskeletal mass, basic and specific metabolism. When recording cardiointervalography of rest in children of the observation group relative to the comparison group, statistically significant differences were revealed between the values of SDNN, RMSSD, variation range, vegetative balance index, rhythm vegetative index of physical exertion by 1.2-1.6 times. In 71.2% of cadets, the power of the heart rate variability spectrum corresponded to a high level. In children from the observation group, the initial vagotonia was recorded 2.2 times more often, and hypersympathicotonia - 7.0 times less often than in the comparison group. In the structure of autonomic reactivity in cadets, the hypersympathicotonic variant prevailed. Conclusion. The results of the analysis of the component composition of the body indicate sufficient fitness, physical activity and physical working capacity in CC students. The vegetative status of cadets is characterized by the predominance of the parasympathetic influence in the regulation of the heart rate. The hypersympathicotonic variant of autonomic reactivity indicates the exertion of adaptation processes to stress.
Introduction: The educational process is one of the leading factors determining health of schoolchildren. Identification of pathologic afflictions among students can contribute to targeted development of health promotion activities and significantly reduce risks of diseases related to learning. Objective: To compare prevalence rates in elementary, secondary and high school students. Materials and methods: In January 2021 to October 2022, 498 schoolchildren passed comprehensive medical examinations. They were subdivided into three cohorts: cohort 1 consisted of 132 elementary school students (median age = 8 (7; 9) years), cohort 2 included 257 secondary school students (13 (11; 14) years), and cohort 3 comprised 109 high school students aged 16 (16; 17) years. The prevalence was assessed based on doctors’ statements; the data and statistics were analyzed using Jamovi. Results: Diseases of the musculoskeletal and digestive systems and endocrine disorders were found to be the most prevalent among the students (68.9–87.5 per 100 examined). The highest fold difference was established between high and elementary school students for the prevalence rates of tension-type headache (32.1), chronic gastritis and duodenitis (22.9), myopia (5.1), and scoliosis (2.9). We observed a direct relationship between educational stages and the development of those diseases. Conclusions: Our findings indicate the need of including additional examinations by neurologists and otolaryngologists at different ages in the procedure for conducting health checkups of minors. The focus, content and scope of health promotion, disease prevention, and outreach activities of pediatricians and preventive medicine physicians should be determined taking into account age-specific prevalence rates and the established association between stages of school education and certain health disorders.
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