Utjecaj mase školske torbe na zdravlje djeteta

KASOVIČ, Mario, Martin ZVONAŘ and Martin SEBERA. Utjecaj mase školske torbe na zdravlje djeteta (The Impact Of School Bag Mass On Child´s Health). Hrvatski Športskomedicinski vjesnik. Zagreb, vol. 29, 2/2014, p. 84-90. ISSN 0354-0766. 2014.

Basic information

• Original name: Utjecaj mase školske torbe na zdravlje djeteta
• Name (in English): The Impact Of School Bag Mass On Child´s Health
• Authors: KASOVIČ, Mario (191 Croatia), Martin ZVONAŘ (203 Czech Republic, guarantor, belonging to the institution) and Martin SEBERA (203 Czech Republic, belonging to the institution).
• Edition: Hrvatski Športskomedicinski vjesnik, Zagreb, 2014, 0354-0766.

Other information

• Original language: Croatian
• Type of outcome: Article in a journal
• Field of Study: Sport and leisure time activities
• Country of publisher: Croatia
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14510/14:00079711
• Organization unit: Faculty of Sports Studies
• Keywords in English: gait school bag force health
• Tags: rivok
• Tags: International impact

Abstract

Mnogi znanstvenici se slažu da je masa torbe jedan od najvažnijih faktora koji može utjecati na zdravlje i pravilan rast djeteta, osobito u osnovnoj školi. Cilj istraživanja je utvrditi utjecaj mase školske torbe na pojavu asimetrije donjih ekstremiteta. Protokolom istraživanja mjerena je okomita sila reakcije podloge Fz pri kontaktu stopala s podlogom pri simuliranim gibanjima u laboratoriju. Za simulaciju su odabrana gibanja koje dijete izvodi spontano u jednom školskom danu. Testovi koji su obuhvatili ova gibanja su: hod po ravnoj površini, hod uz stepenice i hod niz stepenice. Testovi su izvooeni bez i sa školskom torbom.Za testiranje statistieki znaeajne razlike izmeou ekstremiteta korišten je studentov t-test za zavisne varijable uz pogrešku zakljueivanja od 0.05 (p a lt;0.05). Kao dešnjakinja, ispitanica dominantno koristi desnu nogu što je vidljivo u poveaeanoj maksimalnoj vrijednosti sile u testovima „hodu po ravnoj površini“ i „hodu uz stepenice“. Obrnuto, u zahtjevnijem testu „hod niz stepenice“ maksimum sile je manja od maksimuma lijeve strane i pri nošenju torbe i bez nje. Istraživanje ukazuje da aplikacijom vanjskog optereaeenja dolazi do pojave asimetrija i razlike izmeou ekstremiteta koja se vizualizacijom ne može kvantificirati. Osobito je ova razlika izmeou desne i lijeve noge vidljiva u najzahtjevnijem testu „hod niz stepenice sa torbom“ u kojem su zabilježene eetiri razlike koje se protežu kroz sve tri glavne faze hoda. U svakodnevnom životu ove statistieki znaeajne razlike mogu ukazati na deficit mišiaene snage, a uz neaktivni naein života i umanjenu razinu tjelesne aktivnosti mogu biti potencijalno uzrok nastanka ozljeda kralježnice i lokomotornog sustava djeteta s posljedicama koje aee ga pratiti kroz cijeli život.

Abstract (in English)

Many scientists agree that the weight of the school bags is one of the most important factors that may affect the health and proper growth of the child,especially in elementary school.The aim of the research is to determine the effect of weight of school bags on the appearance of asymmetry of the lower extremities.Protocol research measured the vertical load Fz ground reaction upon contact with the ground at the foot simulated movements in the laboratory.Motions that child performes spontaneously in one school day were selected for simulation.The tests,involving the following movements,are:walking on a flat surface,walking up the stairs and walking down the stairs.Tests were carried out with and without the bag. To test statistically significant difference between limbs,Student's t-test for dependent variables with error inference of 0.05 (p <0.05). was used.As a right-handed,subject predominantly uses his right leg which is evident in the increased maximum force values in tests of walking on a flat surface and walking up the stairs.Conversely,in demanding test walking down the stairs maximum force is less than the maximum left,with and without bag.Research indicates that the application of external loads can lead to the asymmetry and differences between limbs,which can not be quantified by visual inspection.In particular,this difference between the right and left legs is visible in the most demanding test of a walk down the stairs with a bag,which recorded four differences that extend through all three main stages walk.In everyday life,these statistically significant differences may indicate a deficit of muscle strength,and with inadequate physical activity and reduced levels of physical activity,may be a potential cause of injury of the spine and musculoskeletal system of the child with the consequences that will follow him throughout life.