o:28757 Levels of physical activity as predictors of defining the body composition of adolescents after the SARS-CoV-2 virus pandemic Nivoi fizičke aktivnosti kao prediktori Telesne kompozicije adolescenata nakon Pandemije SARS-CoV-2 virusa en ABSTRACT: The consequences of the SARS-CoV-2 virus pandemic, certain types of quarantine, and online teaching and reduced physical activity are assumed to be able to affect the levels of physical activity in adolescents. The aim of the research was to determine and compare groups of subjects in body composition, classified according to different levels of physical activity, obtained on the basis of the IPAQ questionnaire (International Physical Activity Questionnaire, Craig et al., 2003). The sample of respondents consisted of 140 high school students from Belgrade, with an average age of 16.95±1.03 years. Two anthropometric measurements were measured according to the International Biological Program (IBP), and body composition was assessed with three body composition measurements using InBody 230 (Biospace Co., Ltd, Seoul, Korea). The Body Mass Index (BMI) according to the Centers for Disease Control and Prevention (2000) was also calculated. The results of the research indicate that 3 clusters were obtained: low level of physical activity of 67 or 47.86%; medium level of physical activity, of which 36 respondents or 25.72% and high level of physical activity, 37 or 22.42% of respondents. Significant differences were further determined in the overall system of variables (p < 0.03), and by individual analysis significant differences were found in the variables: Body weight (p < 0.00), BMI (p < 0.02), Total amount of fat (p < 0.00), Total muscle mass (p < 0.00) and Visceral fat (p < 0.00). A series of Post Hoc tests according to Bonferroni found that better body composition was achieved by subjects with higher levels of physical activity, while the worst body composition with higher values of visceral and total fat was observed in subjects with low levels of physical activity. The authors believe that the quality of life and the level of physical activity can determine the physical composition of adolescents. Also, for future research, they recommend the IPAQ questionnaire as a cheaper and faster means of obtaining information, which could be used to model kinesiological treatments, as clear levels of pairs of groups are obtained that could be used to increase physical activity. APSTRAKT: Posledice pandemije SARS-CoV-2 virusa, određeni vidovi karantina, te on line nastava i smanjena fizička aktivnost predpostavlja se da bi se mogli odraziti na nivoe fizičke aktivnosti kod adolescenata. Cilj istraživanja bio je usmeren na utvrđivanju i poređenje grupa ispitanika u telesnoj kompoziciji, klasifikovanih prema različitom nivou fizičke aktivnosti, dobijenog na osnovu IPAQ upitnika (International Physical Activity Questionnaire, Craig et al., 2003). Uzorak 300 ispitanika bio je sačinjen od 140 učenika srednje škole iz Beograda, prosečne starosti 16.95±1.03 godina. Izmerene su dve antropometrijske mere prema (International Biological Program (IBP)), te je procenjena telesna kompozicija sa tri mere telesnog sastava uz pomoć InBody 230 (Biospace Co., Ltd, Seul, Korea). Takođe je izračunat Index telesne mase (eng. Body mass index (BMI)) prema Centers for Disease Control and Prevention (2000). Rezultati istraživanja ukazuju da su dobijena 3 klastera: nizak nivo fizičke aktivnosti njih 67 ili 47.86%; srednji nivo fizičke aktivnosti od toga 36 ispitanika ili 25.72% i visok nivo fizičke aktivnosti njih 37 ili 22.42% ispitanika. Dalje su utvrđene značajne razlike u celokupnom sistemu varijabli (p < 0.03), a pojedinačnom analizom značajne razlike su utvrđene u varijabalama: Telesna težina (p < 0.00), BMI (p < 0.02), Ukupna količina masti (p < 0.00), Ukupna mišićna masa (p < 0.00) i Visceralne masti (p < 0.00). Serijom Post Hoc testova po Bonferoniju, utvrđeno je da su bolji telesni sastav ostvarili ispitanici sa višim nivoima fizičke aktivnosti, dok su najlošiji telesni sastav sa većim vrednostima visceralne i ukupne količine masti bili primetni kod ispitanika sa niskim nivoom fizičke aktivnosti. Autori smatraju da kvalitet života i nivo fizičke aktivnosti defnitivno može odrediti telesnu komoziciju adolescenata. Takođe za buduća istraživanja preporučuju IPAQ upitnik kao jeftinije i brže sredstvo dobijanja informacija, koje bi mogle poslužiti za modelovanje kinezioloških tretmana, jer se dobijaju jasni nivoi parova grupa sa kojima bi se moglo raditi na povećanju fizičke aktivnosti. Keywords: adolescents, levels of physical activity, SARS-CoV-2 virus, body composition Ključne reči: adolescenti, nivoi fizičke aktivnosti, SARS-CoV-2 virus, telesna kompozicija 1552101 1986-9886 2023-04-11T10:01:24.323Z 44 yes 46 Владан Пелемиш Универзитет у Београду Учитељски факултет 0000-0003-3461-0491 Данимир Мандић Универзитет у Београду Учитељски факултет person 0000-0002-3986-6077 Драган Бранковић Универзитет у Београду Учитељски факултет person 0000-0002-9292-5179 Владимир Живановић Универзитет у Београду Учитељски факултет person 0000-0002-2519-7562 Филип Којић Универзитет у Београду Учитељски факултет person 0000-0001-6740-3347 application/pdf 976180 https://phaidrabg.bg.ac.rs/o:28757 no yes 1 70 92000001 11A42 Improving the quality of life of children and youth Unapređenje kvalitete života djece i mladih XIII International scientific conference 299 311 Association for support and creative development of children and youth Tuzla, Tuzla & University of Tuzla, Faculty for Special Education and Rehabilitation 2022 http://erf.untz.ba/web/