doctoral thesis
The dynamics of nutritional status indicators and physical activity of pupils in primary education

Mateja Kunješić (2015)
University of Zagreb
Faculty of Kinesiology
Metadata
TitleDinamika pokazatelja stanja uhranjenosti i tjelesne aktivnosti učenica i učenika u primarnoj edukaciji
AuthorMateja Kunješić
Mentor(s)Ivan Prskalo
Marjeta Mišigoj-Duraković
Abstract
U zadnjih nekoliko desetljeća zabilježeno je značajno smanjenje razine tjelesne aktivnosti djece s istovremenim prekomjernim povećanjem pokazatelja stanja uhranjenosti. Glavni cilj ovog istraživanja bio je utvrditi trend pokazatelja stanja uhranjenosti i razinu tjelesne aktivnosti učenika i učenica u primarnoj edukaciji kroz 4 godine. Sudionici istraživanja bili su učenici iz dvije osnovne škole u Zagrebu, ukupno pet razreda, tj. 107 učenika oba spola. Uzorak varijabli činilo je 8 varijabli iz anketnog upitnika za procjenu razine tjelesne aktivnosti. Razina tjelesne aktivnosti procijenjena je Felsovim upitnikom za djecu od 7-19 godina. Za procjenu pokazatelja stanja uhranjenosti izmjereni su: visina tijela, tjelesna masa, potkožno masno tkivo-kožni nabor leđa i kožni nabor nadlaktice, opseg nadlaktice te opseg podlaktice. Analiza trenda pokazatelja stanja uhranjenosti i razine tjelesne aktivnosti testirana je polinomijalnom regresijskom analizom. Za izračunavanje razlika po spolu u razini tjelesne aktivnosti i pokazatelja stanja uhranjenosti te energetskoj potrošnji, korištena je univarijatna analiza varijance za ponovljena mjerenja. Za utvrđivanje povezanosti između pokazatelja stanja uhranjenosti i razine tjelesne aktivnosti korišten je Pearsonov koeficijent korelacije. Energetska potrošnja procijenjena je uz pomoć Harris Benedict formule u kojoj se bazalni metabolizam množi s faktorom aktivnosti. Rezultati su pokazali kako postoji značajan utjecaj vremena na pojedine pokazatelje stanja uhranjenosti i indekse pojedinih komponenti tjelesne aktivnosti, dok ukupna tjelesna aktivnost tijekom godina stagnira. Između dječaka i djevojčica ne postoji značajna razlika u indeksima tjelesne aktivnosti i energetskoj potrošnji, dok postoji u tjelesnoj visini i opsegu podlaktice u korist dječaka. Povezanost između pokazatelja stanja uhranjenosti i varijabli za procjenu razine tjelesne aktivnosti može se potvrditi kod djevojčica, ali ne i kod dječaka. Tijekom godina dječaci više vremena provode u aktivnostima srednjeg intenziteta, a djevojčice u aktivnostima niskog intenziteta. S obzirom na dobivene rezultate ovog longitudinalnog istraživanja, može se zaključiti da djeca trebaju što prije povećati razinu tjelesne aktivnosti kako se trend povećanja postotka tjelesne masti ne bi nastavio kretati u pozitivnom smjeru.
Keywordsbody mass index body fat percentage index of sport leisure time index index of household chores differences by gender
Parallel title (English)The dynamics of nutritional status indicators and physical activity of pupils in primary education
Committee MembersBranka Matković (committee chairperson)
Vatroslav Horvat (committee member)
Goran Sporiš (committee member)
GranterUniversity of Zagreb
Faculty of Kinesiology
PlaceZagreb
StateCroatia
Scientific field, discipline, subdisciplineSOCIAL SCIENCES
Kinesiology
Kinesiological Anthropology
UDK613
APPLIED SCIENCES. MEDICINE. TECHNOLOGY
Hygiene. Personal health and hygiene. Dietetics. Occupational diseases. Addictions. Sexual hygiene
Study programme typeuniversity
Study levelpostgraduate
Study programmepostgraduate doctoral study of kinesiology
Academic title abbreviationdr. sc.
Genredoctoral thesis
Language Croatian
Defense date2015-10-22
Parallel abstract (English)
In the last few decades, there was a significant reduction in physical activity level of children with simultaneous excessive increase of nutritional status indicators. The main objective of this research was to determine the trend of nutritional status indicators and physical activity level of students in primary education over a period of 4 years. The sample consisted of students from two primary schools in Zagreb, a total of five grades, 107 students of both genders. The sample of variables consisted of eight variables from the questionnaire to assess the level of physical activity. The level of physical activity was estimated by Fels's questionnaire for children between 7 and 19 years of age. Body height, body weight, subcutaneous fat tissue-back skinfold and arm skinfold, upper arm and forearm girth were measured for the estimation of nutritional status indicators. Trend analysis of nutritional status indicators and physical activity level was tested by polynomial regression analysis. ANOVA for repeated measures was used to calculate the differences in physical activity level by gender and nutritional status indicators, as for energy expenditure calculation. Pearsons's correlation coefficient was used to determine the relationship between nutritional status indicators and the physical activity level. Energy consumption was estimated with the help of Harris Benedict formula in which basal metabolic rate is multiplied by an activity factor. From the results it can be concluded that there is significant impact of time on different indicators of nutritional status and indexes of physical activity, while total physical activity over the years has stagnated. There was no significant difference in the physical activity indexes and energy expenditure between boys and girls, but there is significant difference in body height and forearm girth in favor of boys. The association between nutritional status indicators and the physical activity level estimation variables can be confirmed in girls but not in boys. Over the years, the boys spend more time in activities of moderate intensity while girls spend more time in activities of low intensity. Given the results of this longitudinal study, it can be concluded that children need to increase the level of physical activity to stop increase of body fat percentage, as soon as possible.
Parallel keywords (Croatian)indeks tjelesne mase postotak tjelesne masti indeks sporta indeks slobodnog vremena indeks kućanskih poslova razlike po spolu
Versionaccepted version
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
Noteaccepted version
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:117:350824
CommitterIvan Crnjac