De Craemer Marieke, De Decker Ellen, De Bourdeaudhuij Ilse, Verloigne Maïté, Manios Yannis, Cardon Greet
a Department of Movement and Sport Sciences , Ghent University , Ghent , Belgium.
J Sports Sci. 2015;33(10):1051-7. doi: 10.1080/02640414.2014.981850. Epub 2014 Dec 18.
This study aimed at translating the physical activity (PA) guideline (180 min of total PA per day) into a step count target in preschoolers. 535 Flemish preschoolers (mean age: 4.41 ± 0.58) wore an ActiGraph accelerometer (GT1M, GT3X and GT3X+) - with activated step count function - for four consecutive days. The step count target was calculated from the accelerometer output using a regression equation, applying four different cut-points for light-to-vigorous PA: Pate, Evenson, Reilly, and Van Cauwenberghe. The present analysis showed that 180 min of total PA per day is equivalent to the following step count targets: 5,274 steps/day using the Pate cut-point, 4,653 steps/day using the Evenson cut-point, 11,379 steps/day using the Reilly cut-point and 13,326 steps/day using the Van Cauwenberghe cut-point. Future studies should focus on achieving consensus on which cut-points to use in preschoolers before a definite step count target in preschoolers can be proposed. Until then, we propose to use a provisional step count target of 11,500 steps/day as this step count target is attainable, realistic and helpful in promoting preschoolers' PA.
本研究旨在将身体活动（PA）指南（每天总计180分钟的PA）转化为学龄前儿童的步数目标。535名弗拉芒学龄前儿童（平均年龄：4.41±0.58）连续四天佩戴了具有激活步数功能的ActiGraph加速度计（GT1M、GT3X和GT3X+）。使用回归方程根据加速度计输出计算步数目标，对轻度至剧烈PA应用四个不同的切点：佩特、埃文森、赖利和范考文伯格。目前的分析表明，每天总计180分钟的PA相当于以下步数目标：使用佩特切点为每天5274步，使用埃文森切点为每天4653步，使用赖利切点为每天11379步，使用范考文伯格切点为每天13326步。未来的研究应集中在就学龄前儿童使用哪些切点达成共识，然后才能提出明确的学龄前儿童步数目标。在此之前，我们建议使用每天11500步的临时步数目标，因为这个步数目标是可以实现的、现实的，并且有助于促进学龄前儿童的PA。
