Today, the existing regulatory and methodological documents provide no approved methodological approach to hygienic assessment of brightness and pulsation of mobile electronic devices (MEDs) with a small screen. The study was aimed to customize the current procedures used to assess brightness and pulsation of electronic devices with a large screen for hygienic assessment of brightness and pulsation of the small-sized MED screens. The design characteristics of 100 MEDs (smartphones and tablets) used by medical students in their leisure time and during training were estimated; pulsation and brightness of the MED screens were studied. The questionnaire survey of 173 medical students was performed that involved the use of the questionnaire developed by members of the Department of Hygiene, Faculty of Pediatrics, Pirogov Russian National Research Medical University; the students’ visual acuity was assessed. Two thirds of medical students (67.5%) use MEDs with the screen size exceeding the average (5.5–6.8 inches). The average brightness of every second MED is less than 50.0% of the highest possible brightness. The decrease in the MED screen brightness results in the increase of pulsation coefficient (Spearman's rank correlation coefficient –0.462 ± 0.025, p ≤ 0.05), which can worsen the conditions of visual work. Three quarters of students (76.0%) experience shortage of battery charge during the day; every second student (52.2%) uses the “dark” theme. The development of computer vision syndrome in students is influenced by the MED screen small size (Pearson's contingency coefficient 0.791 ± 0.026, p ≤ 0.05) and its low brightness (Pearson's contingency coefficient 0.781 ± 0.027, p ≤ 0.05), which confirms a sanitary legislation provision on prohibition of the use of smartphones in educational activities (for training). The use of the proposed methodological approach will make it possible to improve the efficiency of vision problem prevention in the population.
VIEWS 393
Discharging their duties, doctors manning autopsy departments and forensic examiners contact infected biological objects and risk contracting infectious diseases. The risk they run is much higher than dangers faced by specialists involved in other aspects of forensic investigations. This study aimed to assess the effectiveness and quality of mechanized cleaning of autopsy tools in ultrasonic cleaners following standard operating procedures. We compared the results of sanitary and bacteriological examination of the said tools washed manually and mechanically, with the help of ultrasonic cleaners. McNemar’s test used in the context of processing of the data allowed revealing the frequency of change of the monitored indicators between the two groups. Mechanical cleaning minimizes direct contact with the tools, allows decontamination of items of complex geometry (including their hard-to-reach parts) without damaging them and ensures high quality of cleaning. With ultrasonic cleaners, mechanized cleaning significantly shortens the time needed to clean medical tools, eliminates the need to wash them manually without compromising their operability, and brings down the risk of workplace injuries and occupational morbidity.
VIEWS 432
The impact of modern factors of educational environment and extracurricular factors results in the risk of the development and progression of functional impairment and chronic diseases of the musculoskeletal system, as well as the diseases of the eye and adnexa in students. The study was aimed to substantiate the programs of hygienic education in terms of compliance with hygienic recommendations on prevention of the diseases of the musculoskeletal system and the eye and adnexa based on the analysis of scientific papers. The review of studies conducted in 2011–2023 by the Russian and foreign experts that were focused on the impact of the educational environmental factors and the daily routine components on the students’ health status was performed using the E-Library, PubMed, Web of Science electronic databases. The impact of such risk factors, as irrational daily routine organization, on the health of students attending general schools, professional and higher educational institutions has been shown. The risk of disorders of the musculoskeletal system and the eye and adnexa resulting from the excess stay in digital environment, lack of physical activity, irrational leisure time organization has been assessed. It is necessary to develop the hygienic training programs involving teachers, lecturers and parents to prevent the effects of the risk factors for disorders of the mysculoskeletal system and the eye and adnexa.
VIEWS 426
Healthy lifestyle formation is one of the tasks of the hygiene education of children, adolescents and young adults. That is why it is necessary for educational institutions to implement the technologies focused on health preservation in students. The study was aimed to develop and test the technology for hygiene training of students. In 2017–2019 we tested the “Habit Trackers – Checklists” technology in dynamics within the framework of the hygiene training of schoolchildren in the Moscow and Astrakhan regions, and in 2021–2023 the technology was tested for college and university students. A total of 502 schoolchildren, 234 college students, and 429 university students were enrolled. In educational institutions, where the hygiene training program was implemented, the number of schoolchildren with the diseases of the musculoskeletal system and connective tissue decreased by 1.4 times, and the number of students with eye diseases decreased by 2.6 times compared to other educational institutions of the Astrakhan region. Later, when the technology was tested for college and university students, the number of students having medium and high levels of physical activity increased from 46.0% (before the hygiene training) to 72.0% (after the hygiene training). The findings allow us to recommend replicating the proposed hygiene training program in educational institutions.
VIEWS 524