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256 0 |
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616.1-053.2+372.8:004 (1) |
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SM ISO690:2012 LUPESCU, Nadina. Pupil’s circulatory system response to the computer work process. In: Revista de Ştiinţe ale Sănătăţii din Moldova, 2022, nr. 3 An.1(29), p. 114. ISSN 2345-1467. |
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Revista de Ştiinţe ale Sănătăţii din Moldova | ||||||
Numărul 3 An.1(29) / 2022 / ISSN 2345-1467 | ||||||
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CZU: 616.1-053.2+372.8:004 | ||||||
Pag. 114-114 | ||||||
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Introduction. The computer, like the television, is a disruptive factor in the life and physical and mental health of modern man, and especially in children and young people, when it is used excessively and a number of rational rules of use are not followed. The aim of the study. Highlighting the dynamics of changes in the circulatory system in pupils who use the computer. Material and methods. An observational epidemiological study was conducted. Object of study: students from two classes of 7th and 8th grade during the computer lesson. Sample – 118 students (38% boys and 62% girls). The age limits of the sample were 1316 years, with a mean of 14.4 ± 0.8 years. Measurements: heart rate and blood pressure before and after the lesson. Results. During the Informatics lesson, the values of the hemodynamic indices in some pupils decreased, in others they increased, but there were also situations when the values remained unchanged. The decrease in values towards the end of the lesson was predominantly recorded. In the average class calculations, the pulse decreased during the lesson by 5.1 beats/min. Both systolic and diastolic blood pressure decreased by 2.1 and 2.7 mmHg by the end of the Informatics lesson, respectively. In addition, four other indices were calculated (pulsating pressure, average dynamic pressure, systolic volume, minute-heart volume), the values of which also decrease during the lesson: 3.6; 2.7; 1.5; 0.2. Conclusions. Computer activity with respect to the work regime, the ergonomic conditions do not influence the well-being of the children’s bodies. The physiological changes of the hemodynamic indices during the Informatics lesson confirm the appearance of fatigue, which can lead to pathologies. |
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Cuvinte-cheie hemodynamic indices, computer, pupils, circulatory system, Informatics lesson, indici hemodinamici, calculator, elevi, sistem circulator, lecția de informatică |
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