Introduction: Previous longitudinal studies indicate that physical activity (PA) significantly declines from primary-to secondary school, and report both changes in individual and environmental determinants of PA. In order to understand this transition and to prevent this negative trend, it is important to gather contextually rich data on possible mechanisms that drive this decline. Therefore, the aim of this study was to investigate changes of PA patterns in transition between primary and secondary school, and to add domain-specific insights of how, where, and when these changes occur. Methods: In total, 175 children participated in a 7-day accelerometer- and Global Positioning System (GPS) protocol at their last year of primary and their first year of secondary school. GPS data-points were overlaid with Geographical Information Systems (GIS) data using ArcGIS 10.1 software. Based on the GPS locations of individual data-points, we identified child’s PA at home, school, local sports grounds, shopping centers, and other locations. Also, trips in active and passive transport were identified according to previously validated GPS speed-algorithms. Longitudinal multi-level linear mixed models were fitted adjusting for age, gender, meteorological circumstances, and the nested structure of days within children and children within schools. Outcome measures were minutes spent in light PA and moderate-to-vigorous PA, specified for the time-segments before school, during school, after school and weekend days. Results: Total PA significantly declined from primary to secondary school. Although transport-related PA increased before- and during school, decreases were found for especially afterschool time spent at sports grounds and transport-related PA during weekends.
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Het aantal jongeren met overgewicht en een inactieve levensstijl neemt nog niet voldoende af. Sinds mei 2013 buigt het lectoraat Gezonde leefstijl in een stimulerende omgeving van de Haagse Hogeschool o.l.v. Sanne de Vries zich over dit problem. Onderdeel van haar werk is een onderzoek naar de Gymzaal van de Toekomst. Want: "Een leven lang gezond en vitaal zijn begint bij een gezonde start. Dat betekent goed leren bewegen in een stimulerende omgeving".
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Lector Sanne de Vries startte tien jaar geleden als lector bij het lectoraat Gezonde Leefstijl in Stimulerende Omgeving (GLSO). In het afgelopen decennium veranderde de focus van het lectoraat én groeide de kenniskring uit tot een maatschappelijk betrokken groep onderzoekers met impact in het werkveld. Een terugblik op tien jaar onderzoek met de lector die zelf minimaal drie keer per week sport en houdt van gezond én lekker eten.
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