The effect of a kindergarten-based, family-involved intervention on objectively measured physical activity in Belgian preschool boys and girls of high and low SES: the ToyBox-study

International Journal of Behavioral Nutrition and Physical Activity

Greet Cardon¹  Yannis Manios²  Ilse De Bourdeaudhuij¹  Maïté Verloigne¹  Ellen De Decker¹  Marieke De Craemer¹ 

[1] Department of Movement and Sport Sciences, Ghent University, Watersportlaan 2, 9000 Ghent, Belgium;Department of Nutrition and Dietetics, Harokopio University, E. Venizelou 70, 17671 Athens, Greece

关键词: Children;    Intervention effect;    Accelerometer;    Kindergarten;    Physical activity;   

Others  :  803928
DOI  :  10.1186/1479-5868-11-38

 received in 2013-11-28, accepted in 2014-03-06,  发布年份 2014

【 摘 要 】

Background

The ToyBox-study developed an evidence- and theory-based intervention to improve preschoolers’ energy balance-related behaviours – including physical activity (PA) – by targeting the kindergarten environment and involving their parents/caregivers. The present study aimed to examine the effect of the ToyBox-intervention on increasing Belgian preschoolers’ objectively measured PA levels.

Methods

A sample of 472 preschoolers (4.43 ± 0.55 years; 55.1% boys) from 27 kindergartens (15 intervention, 12 control kindergartens) in Flanders, Belgium were included in the data analyses. Preschoolers wore an ActiGraph accelerometer for six consecutive days and were included in the data analyses if they had a minimum of two weekdays and one weekend day, both at baseline and follow-up (one year later). Preschoolers’ PA outcomes were estimated for an average day, weekday, weekend day, during school hours, and during after school hours. To assess intervention effects, multilevel repeated measures analyses were conducted for the total sample, and for sub-groups (according to sex, kindergarten levels of socio-economic status (SES) and risk groups (low levels of PA at baseline)) of preschoolers.

Results

Small intervention effects were found in the total sample. Most intervention effects were found in boys and in preschoolers from high SES kindergartens. Boys from the intervention group had an increase in vigorous PA (ß = 1.47, p = 0.03) and moderate-to-vigorous PA (ß = 1.27, p = 0.03) from baseline to follow-up, whereas PA levels in boys from the control group stagnated or decreased. In preschoolers from high SES kindergartens, the largest effects were found for PA outcomes during school hours and during after school hours.

Conclusion

The results from the Belgian sample demonstrate that effects of the PA-component of the ToyBox-intervention on objectively measured PA were found in preschool boys and in preschoolers from high SES kindergartens, which means that the ToyBox-intervention was mainly effective in those sub-groups. Future interventions should search for alternative strategies to increase preschoolers’ PA levels in preschool girls and preschoolers from low SES kindergartens, as these are the most important at-risk groups regarding PA.

【 授权许可】

   
2014 De Craemer et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

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